I'd try something that looks like what they are eating. Close by is a small lake with stocked trout that slam the wooly buggers and #14 bead head prince nymphs. Peacock catches trout.
I've tried egg patterns, but never had a hook up on one.
The largest trout I have hooked there were probably holdovers, 17-18", all taken on woolly buggers stripped in as fast as I could.