20 Uses for seasonal ice cube molds

I bought these molds last year on after-Christmas clearance and forgot all about them until I pulled out my Christmas decorations, so now I'm brainstorming a list of different activities that I can do with them.  I'm hoping to do a week with the gingerbread molds and a week with the Christmas tree molds.  Here are the lists I've come up with so far (Amazon links are affiliates):

Sort colored buttons into the spaces

Use them with Gingerbread Cloud Dough

Sort Gingerbread Marshmallows
Use them to make cinnamon dough ornaments
Play with Gingerbread play dough
Make Cream Cheese Mints for the holidays
Use letter beads to spell 3-letter words in each space
Practice using eye droppers
Do a fizzing science experiment
Explore gingerbread spices with scented rice



Use tweezers and pom poms to decorate the trees
Make Christmas tree crayons
Practice color matching with mini ornaments
Make ice cubes for Christmas party punch
Count Pony Beads into the spaces
Use them in a split pea sensory table
Make Christmas tree sun catchers
Do a Christmas tree ice experiment
Sort mini jingle bells by color
Explore pine with pine-scented play dough

Do you have any ideas to add to my list? I'd love to hear all about them!