Find a manufacturer for custom made novelty slimes with specific details

I would like to find a manufacturer, preferably in the USA, that could make these "hand slimes" at scale. The below competitor websites show the existing products in the marketplace but these are made by hand and the capacity is limited and can't serve all the customer demand. I want to create the same custom products but manufactured at scale.

Ideally the manufacturer could package and ship the products as well but if not I could work out other arrangements.

Competitor Websites:
Main one I would like to base production off and role model is = https://peachybbies.com/

Other similar competitors:
https://momoslimes.com/
https://slimeobsidian.com/
https://rodemslimeshop.com/
https://scoopi.com.au/
https://blushingbb-slimes.myshopify.com/
https://www.scentedslimebyamy.com/
https://ogslimes.com/