Crepe Paper

My AliExpress crepe paper came in yesterday! It's perfect and if you have the time to wait like 2 months or so I'd definitely order there since it's way cheaper and the quality is just fine and works perfect to make flowers

Crepe paper is super hard to find for some reason or else it's quite expensive (etsy). I've found plenty and cheap on AliExpress which I ordered 2 months ago and still isn't in, but I'll let you know if it's okay (though I'm not sure how long I'll still be willing to wait before filing a dispute cause I'm scared it won't come anymore)
I've tried some tissue paper flowers instead which also sorta work out okay and book flowers. Some of the type of flowers you can't do with those though but maybe it's something to get you started? Tissue paper is way easier to get and I just got my books form thrift stores

Michaels has all supplies related to weddings. That may be a source similiar nearby to you.