Do my wasps almost the same way. Cotton under the antennae and abdomen. Lots of pins. Really nice to have a variety of forceps to work with. Large wasps defiently have to be one of the best insects to have displayed. For smaller species have developed a method using a fluffy tolietpaper roll which sounds crazy but has worked out great. You just make slight indentations in the top of the roll, pin the same as you would a spreading board. Fluffy is gentle on the specimens and you can fit a bunch on one roll.
piratelife gem and mineral llc (we dig, we sell, we rock)