Upcoming instructables: http://www.instructables.com/community/Computothoughs-coming-Stuff/
Step 1: Whats needed
4 - Buttons reasonable for the size of the sleeve holes,
2 - Computer chips or other electronics (lead free) that are a bit bigger than the buttons.
Thread or wire to hold two buttons at a time together.
Shirt to wear them on.
Step 2: Buttons
Step 3: Add the chips.
Do the same to the other pair.
Let the Glue dry.
Note: I did not have any shirts with French cuffs, so the picture is a simulation
Coming soon "Geek sandals!"