This was a quick experiment to see if I could graft a chirstmas cactus (Schlumbergera) to an Epiphyllum. No idea if this will work or if these are compatible plants. Of note I am doing this in December while I have read it is better done in spring.
I did this with a very sharp knife and a piece of scotch tape. I found it easier to cut the scion (the top part of the final product) first then trace it to get the exact matching shape on the stock (the bottom part of the final product). I them matched them up as well as i could and taped them in place.