Hi everyone, first time poster here! I'm making a 6" tall cake for my friend's daughter, which will be covered in American buttercream, or possibly white choc ganache. It's a fidget pop-it themed cake, and I've made a lareg heart-shaped pop-it using candy melts, which I was going to stand on top of the cake. However, the base of the pop-it is thinner than I thought it would be and I'm nervous about it snapping if stood on top of the cake, so I've decided to place it on the front of the cake instead; it will be almost the same height as the cake so should work pretty well at the front. My concern is that I won't be able to get it to stay upright; I'm planning to use a bit of buttercream/ganache to fix it on to the cake, and to have part of the heart touching the cake board to help bear the weight. It's a fairly heavy mold, despite being thin, because of the "popper" parts. Does anyone have any experience of adding large candy melt pieces to buttercream cakes, or any advice on how I can achieve it in the most stable way? Thanks in advance!