Hi Kathy!
Thanks for this question!
During the Learning Community this past year "Labor Law Differences" by Nicole Babnick who is a Lawyer and HR professional, Nicole mentioned its not a good idea to hand out gift cards as recognition/appreciation because that is technically taxable income and the giftee "needs" to claim it on their taxes. She advised sticking with swag/food etc. 
Now we all know what we "should" be doing is different from what we are all doing but i thought i would share. 

Thanks!