Here's a "Rangoli" glass block delivered to my customer last week.
A traditional Indian art form & part of the Hindu religion, Rangoli patterns welcome guests, bring good luck, and honour various goddesses...
The intricate patterns are traditionally created on the floor, using coloured rice, sand, flour, or flower petals.
How much easier to paint them onto glass! (Or NOT, as the case may be in my reel)
You can find this design (& many other glass block ones) here: Rangoli Glass Block
(The video IS here - you just have to scroll some way down to find it, I'm afraid...)