I think she will be fine trampolining on a snowy trampoline since she usually wears ski pants when it snows and plays in the snow anyway.
It's a 12 foot diameter trampoline with an enclosure, which looks like this one:
Would like.
But weebles don't have legs to push off with. How would you jump?
I would just have to roll onto it, or maybe some kind person would place me on it.
Then my weight would sink the trampoline to the ground and hopefully I would bounce.
I'd hate to think I'd be stuck there all day unable to move. I'd have to keep my phone
handy in case I needed to make a 911 call, which could be kind of embarrassing.
"Yes, just please come over and roll me out, thank you!"