Similac Checks?

Hi, I'm just a lurker here but I keep getting these $5 Similac checks in the mail because I signed up to some club when I was pregnant in case breastfeeding didn't work out.  Well, my son is almost 3 months old and I'm still breastfeeding and I want to give these checks to someone so they can use them since they expire.  They have my name on them and state that 'these are for your own personal use and cannot be traded for cash'.  Does anyone know if I can give them away, and if so is anyone interested?  I have 7 $5 checks, 4 expiring in July and 3 in August.  I would be happy to send these to anyone who wants them.