Snowball Game

I'm planning an update for the snowball game- once you grow bigger than the screen it will zoom out, and there will be bigger obstacles. The obstacles I have in mind so far are:

• Crevasses. If you're big enough, you can roll right over them.
• Crashed airplanes
• Lodges

You will still be able to see trees, boulders, and houses, but they will be far smaller. (1 /20 the size, I think)

I am willing to take suggestions for more obstacles.