About this 3D model

Token with dimensions to match a one-dollar Canadian coin. I gather this is meant to be used with coin-operated grocery store shopping cart anti-theft (i.e., cart-return encouraging) mechanisms in the event that you do not have the appropriate coin on your person yet still require a cart. In a world where debit and credit transactions are increasingly common and supermarkets are even encouraging "touchless" payment systems, aren't these coin-operated devices rather an anachronism? One (or two, in different sizes) of these on your keychain might just save the day. Customized version of http://www.thingiverse.com/thing:198601 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=198601