If it's not too late, here's my post.... I had some problems with my connection to the internet ...
since i hadn't done much thinking about this theme it's not some idea, but still here it is....
These are the shoes that u can actually stand on without any movement !!!
Aren't they great?! You can get a version with batteries, to massage your feet, so you can enjoy more your standing... :)
(I tried the version without batteries, and it's great!!! Actually it's better than the another one, because it's less useful

)
modeling: ~3h
materials: ~30mins (I had a problem with the main mat for the shoe,adn still it's not what I wanted)
scene: ~15mins
rendering: 1h&26mins