I used to use South African red-top fly traps £7.50 each, Now I have tried many formulas, even using my own waste products, which ended upon Aida when the bag split! lol......
Now on the USA patents web site is some fascinating information, So I am looking for powdered egg, Iv'e tried most of our supermarkets, but knowing me I might have missed it.
If anyone spots it please let me know, my latest batch of bait seems very good,
Ps: I'm not using any of my bodily excretions,this time, well not just yet, as Aida is still recovering from the shock!
I love killing flies and my pal Klaus picked up quite a few in Cairo (fly traps) which seem to work quite well with my own bait.
Nb: 'Did you know yellow attracts flies ? It say's a lot about my sand colored walls...

Ps: "Two flies sitting on dog sh*t. One farts. The other says "Do you mind? I'm eating my dinner!"
Pss: I just got reprimanded on FB for calling Elton John an English Cigarette, 'f***** septics all fags!