DIY Abacus Bracelet For Your Everyday Calculating Needs
by Susana Polo | 2:27 pm, July 10th, 2013
I’ve thought of a number of choice applications for a DIY abacus bracelet, but I think my favorite one would be using it as the calculator watch equivalent for the nerdy wizard character you LARP once a month. Instructions and more pictures can be found at Instructables.
(via So Geek Chic.)