Growing crystals is actually pretty easy to do at home and makes a great science experiment for kids. These Crystal hearts are perfect for a Valentine's Day themed science activity. Have fun with science and create themes for the holidays. My son loves holiday themed science activities, and I think it really helps his love of science to come out!
The Thomas the Train snack train made for third birthday party. It's just two packs of aluminum loaf pans from Walmart (mine came with plastic lids-great for leftovers), a roll of black electrical tape and of course, Thomas.