I just found a site where you can print some free Spanish Alphabet Flash Cards. There is a vocabulary word on each card along with the targeted letter. Print 2 sets and play memory and go fish. I can't wait till my printer is up and running again and I can print these too!
Update: I finally made a few memory and go fish games. My daughter loves these games. When we play the memory game I just make sure to say each word we turn over every time so that she continually hears the words in Spanish. For Go Fish in Spanish we each have 4-6 cards and take turns asking "Tienes la manzana?" for example. When I answer I always say, "si, la tengo." or "No, no la tengo. Anda a pescar." Kids learn Spanish so fast and easily through play. I'm always so excited to hear my kids using Spanish.