My stupid cane. Why oh why did I forget to bring it with me.
If there's a Walmart or a drugstore you could buy a folding cane to use.
They didn't have anything like that in Prague. To tourists walking in the old town, Prague appears to only have a) souvenir shops with t-shirts, b) restaurants offering Pilsner Urquell, and c) shops selling "authentic" Bohemian crystal.
I was hoping for an antiques shop where I could find a cool cane but no luck.