Waywak has rainbow hardware and here's my haul of everything I got! 

The rivets you ordered were 8mm post. For thicker fabric, you need to order 9mm or 10mm post. I usually purchase my rivets from Kamsnaps.

Have you tried kamsnaps for the longer rivets. I think they have 2 different sizes.

I got some of the rainbow pulls from Wawak and I am very satisfied.

I found the long stem rivets from Tandy Leather and love them for when im doing thicker straps and thicker vinyl :)

I too like wawak! But I did find longer stemmed rivets on good ole Amazon… I’ll email you the link… so far they are holding!

I buy a lot from Wawak and always get my orders within 3 days. The only issue I've had with anything from them is the 1" strap ends , the screws and strap ends are just not threaded very good and I had to fight and fight to try and get them screwed in. But I basically buy most of my hardware from them and my decovil.

Hi Faith ~ I order my interfacing from them and I love it. My order should be arriving today and it takes about two days.

Indo Love Creation has the 10 post rivets.

I’m not well versed in rivets, Snapstools has 2 sizes. They call them echo and common. I think the common was almost 11mm. Zip tape that’s black on black, I got from SiahSwag in case you need that in future.

I love wawak but for me in Hawaii my shipping comes out as much as my order. Wawak please see about better shipping options for Hawaii people's I would order more often if my shipping didn't cost me as much as my order😢