About this 3D model

Here are the links to the magnets on ebay. Print 2 of theese, put 3 cylinder magnets into each hole, but 2 rectangular magnets in the rectangular whole, then glue the top on with superglue. Then lace them up, and never have to bother with the shoelaces! Need help with lacing them up? https://www.youtube.com/watch?v=vpytiSmReco It would really help me, if you would tip me with 5$, seeing theese would cost you 30$/pair online. Thank you! http://www.ebay.co.uk/itm/Powerful-Rectangular-Rare-Earth-Neodymium-Magnets-Craft-Magnet-15-6-3mm-014-/121737392030?var=&epid=1360733880&hash=item1c581d2f9e:m:m843ZW19e2qNN-dkNzbbEAQ http://www.ebay.co.uk/itm/first4magnets-F332SC-50-3-mm-Diameter-x-2-mm-Thick-Samarium-Cobalt-Magnet-wit-/142480179349?hash=item212c7b0095:g:V6UAAOSwlWFZl4i4