Planted Tank Guru
Join Date: Jul 2008
Location: East Lansing, MI, USA
If you don't mind plastic, PVC pipe comes in a variety of dimensions.
If you have a tile shop near by, there are a lot of things you can build with what they have using aquarium silicone.
If someone in the house is interested, find a ceramics store or pottery store that lets you make your own creations and fires it/them for you.