Help me put together a bator with things I have around the house....

Ok, I REALLY want to hatch some eggs but if I spend any more money on chicken supplies I think my husband will kill me. I have some money in my "piggy bank" for eggs (shhhh!) and other little needs for a bator but can someone tell me what I can use that would be readily available or link me to some easy instructions?
Thankies!

 

Thankies

 

Yes, it's great.

I figure if I start sneaking one or two things into my cart at the store here and there my DH won't even notice LOL

I have 5 week old Khaki Cambell ducks too that hopefully someday will give me fertile eggs to incubate/raise/sell. I ordered 8 khaki hens and 1 drake from Ideal and they only sent me 3 hens and the 1 drake!!!
I called them the day I recieved the shipment and they were like "Whoops! Sorrryyy! We'll credit you for your next order!"

*sigh*

These 5 week old ducks and chicks of mine can't grow fast enough. I have totally been bitten by the bug!
Thanks again!