Just gonna look through my current dream goal list and pull a few out...
4884. Convince a DC that they're dreaming.
4885. Drink various different colors of potions and see what each one does.
4886. While floating in the air, blow up a city below. Watch the havoc from up above.
4887. Ask your subconscious (another DC) some meaningful questions about yourself: what's my one fear, what's my dream job, etc.
4888. Create an instrument.
4889. Create a weapon.
4890. Make DCs levitate or do stupid and amusing things for your personal entertainment.
4891. Try to get yourself drunk. See what happens.
4892. Create a video game.
(My apologies if some of this has already been said!)