1. I was sure that someone else had already invented the decimal-friendly method of finger counting I came up with earlier this year. Not only is that true, they came up with a much cooler name for it — Chisanbop.

  2. Hydro-fold, a 3D printer of sorts.

    By adding water to printer ink and printing fold patterns onto regular paper, self-folding origami is possible. Whilst not quite as impressive as conventional 3D printers, the possibility of printing a self-assembling structure with volume from a normal printer is somewhat exciting