LightInTheBox offers this 10-Piece Executive Toys Puzzle Cube
for $11.69. Coupon code "MAGNETBOYS" drops it to $7.69
. Plus, select no tracking to bag free shipping
. That's $12 off list and the lowest total price we could find. It features 10 bendable magnets.
Note: Uncheck "Add shipping insurance" to avoid the 49-cent fee.