Repurposed shopping carts

My son Tyler and I stopped into a little resale shop today.  The only thing of interest was these two very small, old, metal shopping carts.  Unfortunately, they were not for sale, only customer use.  Bummer!  This got me thinking about ways that a shopping cart could be repurposed.   A quick search brought me to some of these massively cool ideas...

for towing with your bike

Birdcage!

What ideas do you have???