Just wait'll tomorrow when Richard and I get back from Honolulu with dry ice! Alli will dump some chunks into the half-soda can in the top, and pour in a little hot water, and billows of steam will pour out. Theoretically. She'll run a test tomorrow at home, but at 1 p.m., the cake goes to school for 28 members of Sam's class to witness this active volcano!
Only once, at the start, did Sam suggest "I should probably take just a little taste of the frosting . . . to be sure it is fresh!" Amazingly, when he was through globbing, he WASHED his hands instead of licking, but when I asked if he'd help clean mine off, he happily got right in there to eat it!
It's mom and Sam's partnership that delicately added the "lava flow". A great team effort!