Terrariums - fun project for a snowy afternoon

Give me a day off of work and I can easily find things to do. Was inspired to build some terrariums today when I found some really fun glass pieces at a thrift store.  Does anyone remember making these as a kid?  I'd get so lost starring at mine - I could imagine a whole separate world in that container.

 Got some great advice at Jung's Garden center and they set me up will all the proper materials including pea gravel, charcoal, Zippy potty soil, moss and some cute little plants.  With the cover, it's already warm and nicely humid - Just what plants love.

For this terrarium, I put an elephant in for one of my favorite books as a child - Horton Hears a Who.

And of course I'm already wondering what is going to happen to Horton in his new habitat.