Jen Wilson's new Backyard Boy kit in SBB's store has a couple of tags with photos of bumble bees on them.
And Shelle Pukas has a "Bee Happy" page set at SBE.
Of course, those sets are for sale.
Here's what I found that are free:
Elise Meys has a free kit in the elements section for subscribers only:
http://www.scrapbook-bytes.com/galle...at=9922&page=1
Bright yellow backgrounds by Gauchogirl are here:
http://www.scrapbook-bytes.com/galle...cat=662&page=1
I hope this helps.