Lesson Plan: Natural Resources Scavenger Hunt

While studying natural resources, the girls will each do a scavenger hunt for products in our home that are made from natural products. Here are their instructions:

Find items made from (or that contain) the following things:

pressed wood pulp
cotton pant
fruit from a plant
minerals such as copper or nickel
Wood
stone
clay
metal
water
air

And here are the products I will help them "find" if they are struggling:

paper
cotton clothing
canned fruit
pennies or nickles
pencil
decorative rocks
dishes
tacks
fish tank
blown up balloons or inflated bike tires

I'd love to know if anyone has other ideas from natural products or resources we can look for. (I feel like I am having teacher block and am having a creativity block so I could only come up with a list of 10 items.)