Well, hello! I have couple new methods. They're doesn't work 100%. Just know it.
First one is like "Write a good review for a discount", but it more cheaper!!!
Okay, the first one:
You have to find a room with tag - creator/creators. (I know, a lot of room owners put that tags with no reason, but, yes, just try to find them).
Then you have to check their profiles and shop, if they're creators, let them know about your idea.
(If they're "young" (I mean new) your % is higher)).
Idea is like - "Hello, I saw your products and I like them, you can give me some products for free and I'll to advertise your products."
It's kind of stupid, maybe, but it works sometimes. You have to say them - I'll leave a good review, I'll recomended your products to my friends and other people. Like, we can visit with friend one room and just "play" like - Hey, dude, I like your T-shirt, can you give me an creator,please? and etc. You can come up with another "situations".
It took couple mins to write a massage to each creator in room. Or you can copy+paste. Easy easy.
Second one (If you can do something in PS or another programm/game maybe)
Well, once I met one guy, who was playing in cs go, I give him an offer: I can boost you, I can play with you, but you buy me 2 products from my wishlist. He told me - no problem,mate. The first gift was before we played and next one is after game.
I want to told you about any offers. You can say - I can make a picture to your profile picture. You can add lines, write his/her nick with some beautiful font, do it maybe darker, well, whatever you want. Easy, just spend 20 mins of your life to learn how to add simple things and create a simple avatar picture.
Just, guys, it's like in reallife, you have to offer something and it can help you to learn your credits/stuff.
Enjoy. Hope, it help to you.
p.s. and yes, sorry for my bad english, i have no practice, so yes. Just from Russia.