Gifts for nieces and nephews as honor attendants...

I have 2 nephews and 2 nieces (well...the girls are my brother's second wife's kids) who I plan on having hand out the bubbles, etc. at my ceremony. At the rehearsal dinner, I'd like to give them a little something as a token of our appreciation and found these...are they ok to give them?

Yes.
I think they are very cute.