I found one online but it's $20.00
Yes, there is, it isn't permanent if you wash and dry the blanket in the machine this will wear offGet fabric gluesold in fabric departmentsCalled FabritacUnder the satin lining of your blanket you can open the end of that lining and cut out a small piece of the blanket from under there Once you have the piece and glueYou can cut the piece to fit over the burn and just glue itOr you can mince up the sample and apply the minced pieces to the burned areaIf the burn goes all of the way through, then I would iron on a patch on the back sideThen do the other steps Good luck.
There was a thing on the market,you sprinkle it on the area then put a cloth over it and iron it,it work great,but i can't think of the name of it.
My answer is similar to the previousI would suggest taking a large aluminum can, like one of the big cans of beans, and wash and dry it thoroughlyThen bend it into the shape you wantThe hard part will be bending itWhen I was younger my Dad used to make me cookie cutters out of cans.