Can I get her a rose for a dance?

You can buy flowers that are pinned on to a band and worn on the wrist like a bracelet, that wont get ruined and wont have to go into the coat check room. Roses are definately very beautiful, a red rose however is a symbol of love, if you dont want her to get the wrong idea then how about getting her a pink rose, that is for friendship. Have a good time.