Andy - I love all these mugs - they are SO COLORFUL - and a COOL Fun design to hold your Beer can.
A number of times I have pondered doing something similar. But, my idea was - what if one could print it out of TPU - which means it's flexible and could fit slightly different beer can sizes. Then, at one point - I was thinking - what if one could design it so that it had kinda like small pockets or Tubing - that could contain water. Then, the idea is - put the water in - put in your Freezer - it freezes up - and now it could keep cold drinks colder longer. Only problem is - when it melts - some folks may have a problem if it tips over (with beer can removed) - and now the water spills out.
Anyway - it's just a thought...
Now that I am done moving - it's time to get back to 3D Printing. Halloween is almost over - and the project I was trying to do for Halloween - it's almost TOO Late now...
But, I'm still going to give it a shot - and will post back here (in another thread - of course).
-K