Do you remember making terrariums as a child?  It seemed to be very popular in the 70's.  Well they are back!  This past year my middle son was going to school for landscape design and broke his leg.  He started making terrariums to sell at a local flea market to earn some money since standing and working wasn't an option.  After watching him I was hooked and continued to make them after he moved to CO.  There is a wonderful book called  "The New Terrarium" by Tovah Martin. It is a great resource.  Wonderful photography.  Decorate your home with them or give them as gifts.