I found a guy on Etsy in England who makes casein gypsy jazz picks. I thought I'd give the 5mm pick a try and it arrived a little while ago today.
I think it's awesome!
Please see attached images.
It has a great feel and three different types of point depending on how you like your attack.
His name is Pete Nicholson and his shop's here:
I think it's a really great pick at a very reasonable price, so if anyone has been wanting to try this sort of pick out, but wasn't sure which way to jump, get in touch with Pete. He can do a variety of thicknesses and is really easy to work with.
All the best,