Here's my short video explaining which fabric pens and paints I find are the best for customizing clothes. Hope this helps you decide on which ones to go for if you're looking to customize clothes too.

Here's my tutorial on how to paint on a t-shirt with fabric pen:    • How to draw on clothes using fabric pen  

Here's a tutorial on how to paint on a tie using fabric pen & fabric paint:   • How to paint on a silk tie #customize...  

Dylon fabric paint Amazon link below.
https://www.amazon.co.uk/dp/B00G25IDH...
And another link below
https://www.amazon.com/dp/B07SJH5HYM/...