I wanna make a custom remote-controllable bit with Bluetooth LE chip.
small PV panel, act as power and a light sensor
anything to play sound, dimmer can act as volume dial
A bit with a single or dual nixie tube display (similar to the nixie tube watch).
Various Pressure Transducer circuits from .5 psi to 25 psi or adjustable
can you make a bit that has aligator clips so I can make my own sensor and clip it in?
Flying shark bit.
microcontroller and a wifi/bt antenna
Bluetooth interface and phone app to control the creation 
8 digit lcd counter that adds or subtracts 1 with each pulse and a reset to zero function
nano bionic chocolate detector
Floppy-Disk compatible interface
just the magnet bits attached to protoboard
synth bits to make music with
RFID
DIY-bit, a emty bit with holes on that you can solder your own components on and make a custom bit.
Micro Satellite Dish Input
Between Inputs & Outputs, what about some Middles to do some basic logic to or mix multiple inputs?
usb interface to program eproms
bitz to make a radio transmitter
a larger start kit
you need a simple motor that provides rotational energy and an axle
CONTROL MODULE THAT INTERFACE WITH IPHONE/PAD APP TO CONTROL OUTPUT MODULES.
A timer bit. Count up to a preset, and/or count down from a preset.
8 bit memory cell
brrrraaaiiiiiinnnnssssss!
heat and or motion sensor
A microphone to snap on little sound projects
Hand-Crank power. Flex connection to isolate. Capacitors to store energy. No Batteries Required!!
circular input like on the pacemaker: http://➜.ws/DQ 
A Traction Motor – a little bit of motion
Wireless two-way antenna. Has four sides. power. Input. Output. Channel. So really three input sides
A one in and two out bit and vice versa!!
Logic Gates!
A programmable bit. Definitely.
Little synthesizer modules, teaching the basics of sound and making cool music
A PLD bit could be used with an amplifier bit to make a little music box
a talking little bit
a motor
A little bit of peace & quiet
Slow down, are you kidding?
Power driver (relay)
Variable gain bit (attenuator – buffer – amplifier)
Mixers (logical AND, logical OR, and analog types)
Splitter
A wall power which can be used worldwide (220V) rather than just US
A programmable bit would be great-being able to teach electronics and a bit of programming with this
A grid of LEDs, like 4×4 or 6×6.
Numeric output LEDs. Maybe three character would suffice.
a proximity sensor
A programmable bit with a tiny amount of memory and a tiny microprocessor, programmed via PC…
A mic bit. That how loud I yelled would dictate the brightness of light. Or power output
A valve. Outputs input modulated by a control. Seems fundamental!
A series of challenges, so a school club could have “badge” challenges
A low power laser diode would be great for teaching about linear light and its uses.
4 bit adder
These would be a fantastic resource for schools! School friendly prices is my dream
make a traffic light
IR emitter/detector bit pair (to split a chain of bits)
A speaker, or a headphone jack, or a button grid (like monome), or a midi/osc output
That each littleBit have printed upon it, the schematic symbol, to teach how to read a circuit board
Weight sensor
A kit to make a mini-Theremin.
tiny crawling bots, moving aound the house, looking for the source of the wifi signal (the router!)
a proximity sensor
I’d like to see basic components to make a robot. A simpler (at first) version of a Rovio!
Electromagnet that can be used as guitar pickup
programmable bit for programming a small vehicle
Solar panel power unit (instead of trad. wall power)!
Input: light & sound sensors
A touch screen 10 inch screen bit for making a phone or electronic tablet.
A touch screen 10 inch screen bit for making a phone or electronic tablet.
Microphone bit for sound input… sensitive to sound strength (dB) – displayed on bargraph
An illuminated display that shows sentences, pieces of dialogue, phrases, or sketches that are cool.
Essential electronics to finally make my creation (human millipede) a reality…..
A piece of sculpture that looks like art but actually does something-like a robot.
Counter, or something that displays numbers.
Memory storage (i.e. for a short sequence of input signals)
A PIR sensor – to turn the circuit on when the cat comes near
A computer interface. For example feed my pulse into the computer will on tread mill
Fart sniffer
Temperature sensor – make a thermometer or a thermostst
Solar power
A stealthy haptic belt (that uses vibrators to indicate north) that can be used with real belts.
a gyroscope/level to help people avoid slumping; smartphone/computer interface…
electromagnets
Weather proof solar powered/battery recharging device for outdoor fun.
Motor, wheels and proximity sensors…LittleBits to LittleBots 
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bits to build basic guitar effects pedals. instrument cable inputs and outputs, dials, etc
IR Transmitter, IR Receiver, Wifi Bit, BlueTooth Bit: All these open your bits to more controllers
breadboard bit
007 Spy gadget set. Reconfigure to use different functions. Non lethal please.
keyboard bit (stylophone-type) for simple synths
microcontroller bit, for anything!
speaker bit, for making simple synths
Alarm sounds & shuts power off to the TV or FM radio whenever Sarah Palin’s name is audibly detected
quick buzzer for my apartment door
use in robotics and circuit/effects
a fart alarm!
MAGNETOMETER
an idea detector…
Punch Bowl Detector:
1. For drinks getting below a certain level
2. A temperature gauge to keep cold
Weight watcher: when you are too heavy -> it buzzes
Lights when guitar string is tuned
A littleBits Science kit!
Teleportation device
