Decorations

Awhile ago someone posted some sites or a facebook group where brides could purchase from other brides, can someone please let me know what those sites are? Apparantly, the location that we have selected has no type of room decorations. While some may think this is great if you are creative and it gives you a blank slate, I'm bogged down with work and don't have that much creativity going on in my brain right now. My fiance wants me to leave it up to him and his kids and that's a NO. I'm going to meet with my sorority sisters and try to put together a plan for some simple but classy room decorations based on some things Ive seen from pinterest and my sister in law is going to help. BUT I'd rather not buy alot of new things especially if I can resale later or even rent. TIA.