I think Spreadshirt might offer a one off printing similar to this. I haven't looked through all their flex options, but I've seen some specialty colors there. You could go to spreadshirt.com and check for sure.
Any service (like PrintMojo) that does screen printing can also get the glitter/sparkle additives that get added to plastisol inks, but of course, they won't be one off.
You seem to have a real fascination with glitter recently
I haven't seen much demand for it myself.
Any service (like PrintMojo) that does screen printing can also get the glitter/sparkle additives that get added to plastisol inks, but of course, they won't be one off.
You seem to have a real fascination with glitter recently
I haven't seen much demand for it myself.