So I have decided to do lime green, navy and white decor if we have a boy. I found this set, which I LOVE, and of course it is $650 (no way):

If you find anything more practical, please let me know. I emailed my aunt to see if I found fabric, if she might be able to make some stuff for me. I saw the turtle bedding from GAP, but am not in love with it, but it is definitely more affordable. This is our second child, so we don't want to spend a fortune on bedding.
Re: Lime Green and Navy Bedding
https://warmbiscuit.com/navypolkadots.html
Check out this website. I am going to order most of my fabrics from here and have a girl on Etsy make the bedding for me!
i'm attempting to do Navy and White bedding as well with maybe a little green as an accent color, and boy is it a PITA! i found a set that was $700 from luxurybeddingnursery.com. yeah, it'll be covered with poop, pee and vomit...i don't think so. my other alternative is to mix and match. PBK has a pique white and navy set that i'm going to look at tonight, so i can pair that with some green striped sheets or navy and white polka dotted sheets (PBK has them). Also, baby Gap Home has a navy blue and white bumper with polka dots that's on sale...
i'm glad to see i'm not the only one with this dilemna! i'm not a "theme" kind of person, so i like the idea of just pairing classic colors together. Good luck and since there's already been 3 of us that have posted in 2 days about this issue, keep us updated
That's a fun site - lots of good choices. Just a warning, though, that they are WAY overpriced. I noticed they're charging $15/yd for fabrics you can find for $8/yd elsewhere (try SewMamaSew, Hancocks of Paducah, Fat Quarter Shop, etc.). Of course they don't mention the designer or name of the pattern so it's hard to comparison shop, but just thought I'd mention it.
Thanks, I'll be sure to double check prices. So far that's the only site that I oculd find the patterns/colors I am looking for (besides a couple on Sewmamasew)!