Came across what I think is a descent deal at Amazon on onesies. A 5 pack comes to under $8. That's less than $2 each for a brand name, printed onesie. Prices vary based on size and selection. Sizes 0-9 months. These are amongst the lowest prices for a 5 pack of quality bodysuits on amazon. There may be other options out there as well. Good luck!

boys [amazon.com]

girls [amazon.com]