Thought this may be of interest to some;
Basically an Ikea deep box frame called 'Ribba', about £7, this one is 10" by 10" buy they do loads of sizes, and they're about 1.5" deep so plenty big enough for any fly.
I mounted these with wire wrapped around the eye and hook, twisted to lock it in place, then passed through small holes in the backplate and glued with a glue gun. The advantage is that it's discrete, and they can be moved afterwards to position them perfectly. The downside is it's fiddly, but, the backplate is thick enough to be drilled and a wooden/plastic post glued in. The names are just printed out on high quality paper, cut out, and glued with pritt stick or craft mount spray.
Total cost including flies, about £10, £20 including buying the glue gun!