I guess I am not very creative...I just use what I can buy...such as epiweb and other regular potting medium, mounts, and containers available on the market. I did receive one on a shell and it is very cool looking! One of these days I'll try a deer or elk antler when I have the space.
I have some shot glasses that I'm thinking about using for my keikis. I gotta get a glass drill bit cause i have lots of my s/h chids in glass vessels with no holes and I gotta cover the top and tip the whole plant to pour the excess water out when i water. If i see a clear plastic/glass container that will hold water and fit a chid... i'll use it