I've reached out to a lot of suppliers but none of them can't produce what I'm asking or are too expensive. Should I find another product for my 20-unit Challenge?

Having to keep on switching products will take up too much time. We also don't want you to spend so much money on the 20 unit challenge.

Let's keep the momentum going! You can proceed with a supplier who can make the closest to what we are asking for. If a custom sample is too expensive, ask the supplier for their product catalog, or see what other similar products they have. Preferably something that you don't see on Amazon. 

If the supplier may not have 20 units of an item, it could even be 5 or 10 samples.