Need somebody to test some Duck eggs for me!! 1/2 eggies

[Mrs. Fluffy Puffy]

My ducks are finally starting to lay. So far every egg I've opened up has been fertile. However, since my incubators are all turned off and I do not have a broody hen to stick them under I need someone to test some eggs out for me. For 6+ eggs it's $20.00 shipped
I'm fairly certain the girl that is laying most of the eggs is my Rouen female. But here is a list of the possible mothers and fathers:
Drakes:
Black and Blue Swedish (Crested and non-Crested)
Khaki Campbell
Rouen
Black and Fawn Runner
Magpie
Magpie x Pekin
Ducks:
Khaki Campbell
Rouen
Pekin mix
Magpie
Buff Orpingtons
Black Runner mix
I will try and upload some pictures tonight.