Gecko DeskPal Fridge Magnet 8 x 3.5

Inspired by http://www.thingiverse.com/thing:1661964 which is a remix of http://www.thingiverse.com/thing:783748 I got 100 8mmx1mm magnets from banggood for $3.80 http://www.dx.com/p/8x-1mm-ndfeb-neodymium-magnet-circular-cylinder-diy-puzzle-set-silver-100-pcs-219204 so I just used tinkercad and put in a 8x3.5mm hole over the 6x3mm hole of the original remix, if you stack the little magnets they get VERY strong!

They do have 8x3magnets
http://www.dx.com/p/8-x-3mm-strong-ndfeb-magnet-silver-