This is what my Ex daughter-in-law made me for my BD. It's a piece of plywood cut out. She used liquid nails to attach the aquarium rocks. This was her first attempt and she did a great job! Only she stacked the rocks too thick and the top layer is flaking off. It is designed as a yard stake, but I'm not wanting to put it out till I can figure out how to secure the rocks better or I'm afraid after the first good rain I'll be very disappointed. She sprayed on a coat of clear sealer, but that is not doing the trick. Any ideas? I am considering using brush on poly and trying to put it on fairly thick. Any thoughts on that or any other suggestions would be appreciated. It's about 18 inches tall. I have visions of other projects with aquarium rocks as this is very neat looking. I personally think I would have used GEII Silicone. Has anyone done this type of craft before? I have googled it but found nothing.