Thanks for asking this, now I know where to buy mylar when I am ready for it!
How could I have forgotten Aguasanta? Most of her designs are created for mylar, too.
Maria, I did see that Embroidery Library - has some lovely mylar ornaments on sale this week - I know that isn't pumpkins - however you have a few great leads from other CUTE family members and you might want to check out the ornaments for the future while they are on sale.
Gigi at Charming Station has some great designs with mylar.
Goodies by Gail also has some.
I have bought some sheets of mylar at the link i put in bottom.They are not very expensive, they were sent to me in France in a envelop, and few postage. I have not yet try them. Perhaps some Cuties can give their experience with washing ???
Sorry, I keep meaning to get into mylar but I have not got around to it yet, must explore it soon. but I thought I would stop by and water you garden and plant another flower.<br />Alice