Where can I get flat wood frames?

I've checked Michaels, Home Goods, etc. I need flat wood because I am going to paint them to match my color scheme. All my other frames are distressed cream color.. I don't want black frames for everything else.

TIA.

RAM only has 4 x 6. I feel that's a little small.

I love IKEA, it's just so far out of the way!

i distressed my own frames for my table numbers. i wish i had a pic but i dont have one. i went to dollar tree and i got these 5 x 7 frames that are wood and painted a slate/steel gray, almost like a cross between a navy and a dark gray. then i sanded them down slightly with a piece of sandpaper, then i took a regular sewing needing and made scratches in the paint and peeled off some of the paint around the edges and went over it again with more sandpaper. it only cost me a dollar a frame and about 2 hours to get them all done. i made 15 frames.

ETA: i will try and get a pic for you, your wedding is after mine so if you want you can have these. if you dont mind picking them up from my parents house, i'll be on my honeymoon.

I'm not sure if Hobby Lobby has locations on Long Island, but it does have quite a few NY stores. Its the same as Michael's, just less pricey.
I have it by me and I LOVE it. I'm there every week for all my wedding projects

These are a few frames they offer online, but their in store selection is much better.

http://shop.hobbylobby.com/products/1-7/8-unfinished-open-frame-693952/
http://shop.hobbylobby.com/products/1-7/8-unfinished-open-frame-693929/

Thanks Bree, send me a pic to my email. I might be able to pick them up but not sure since it's SO close. I may just end up at the Dollar Store.

Hobby Lobby location in NY is opening on 10/28 :( But thank you.