You could look at various shapes of flower vases.
I use a large glass cookie jar from Tesco, sometimes I use Kilner jars (but the brine eventually leads to the metal rusting).
I'm not surre where you are located for providing links, but if you want something more fun, maybe try a small betta tank - one of the stupidly small fish tanks that are sold for keeping Betta splendens. Most of these are waaay too small for keep an actual fish in depsite how they are advertised, but could be great for Sea-Monkeys.