Hi, I am making a sandcastle and wondering, if I use a crusting buttercream, will it crust too quickly for the "sand" to stick. Any suggestions would be really aprreciated. Thanks

All I use is crusting buttercream, and mine stuck great. You can see it in my pictures. As a matter of fact, most of my BC had crusted when I put the 'sand' on and it worked just fine.

Thanks chellebyerly