Made my acorns out of fondant/gum paste blend. I formed the nut first by shaping into an oval then made the little caps separately and attached with gum glue. I just molded them really carefully and used a little tool to texture the cap to look like scales. Dusted them gold. Will try to send picture to you tomorrow.
I will dust the ones I have to see how they come out, and if i'm not happy, I will just try again....
Would love to see your piccy.