Anyone have a pattern for a cross like the one on this cake? Also how do you add it to the cake? Piping gel transfer?

Google "filigree cross design" and print out whichever one you like. I would do it in RI.

This is a really pretty one . . .

http://spanishartmarket.com/racheal_montoya/large/necklaces/filigree_cross_pendant_04.html