The souvenirs are show-and-tell items to engage the students with hands-on materials that they may not have seen before.

1. Amethyst Pros - Easy to find, relevant
   Cons - Maybe too common
2. Ulexite (tv rock) Pros - Fun, regional association
   Cons - Less common and to find a good one, it's best to pick it out in person, like at a local rock and mineral show
3. Gypsum Pros - Inexpensive, relevant, can be linked to extraordinary find at the Naica Mine in Mexico
   Cons - Not that durable

1. Mimosa (sensitive plant)
   Pros - It closes its leaves when touched
   Cons - Sometimes not easy to find, It takes time for the leaves to reopen, plant is not that big and can be easily damanged
2. Pitcher plant or Venus Fly Trap Pros - Even if it doesn't do much to bugs very quickly, they are fun to look at
   Cons - Not active
3. Cacao pod Pros - Relevant yet mysterious, source of chocolate
   Cons - Hard to get one although durable once you have one
   

1. Utilitarian objects Basket made of local Torrey Pine needles
   Cement stepping stone topped with Mexican beach pebbles
   Packing material made of shredded newspapers from China
   
2. Part of a larger object and image of full object Shaped rock - part of headstone, Petra
   Piece of artwork - sand painting, mandala
   Yellow feature - part of the robe of Hawaiian royalty
   
3. Food Dragonfruit
   Dates
   Dried seaweed