For my birthday a few months back, I was given a "Magic Garden" which grows crystal "flowers" on cardboard trees.  (for ages 3 and up but "children under 10 should have supervision" and its "non toxic" )  We finally got around to building it and had some great fun. As the box says "That's incredible. Never before seen, and amost unbelievable" (ok, you guessed its made in Taiwan).  So we (2 managers and an intern) removed the cardboard "mountain and trees", dutifully put them in thier places in a plastic tray and poured the "magic" solution over them.  And like "magic" within an hour crystal blooms began to form on my trees - exactly like the picture on the box!  Pretty cool - just like chomatography labs back in college.  See the photos for the real story!

The Box - like it would EVER look like this!              After careful work - note the clear liquid in the tray 

Wow, looks like it might work.                            Incredibly, it works at advertized!