Best glue gun for wax stamps?

I have ordered a personalised wax stamp to make wax seals for our invites, I read online I should use a cool melt glue gun but can't find one for 11mm wax sticks. Hobbycraft have one for 7mm sticks, but the sticks on Etsy say not compatible with the hobby craft glue gun Can anyone help me out please if they've used the hobby craft one or links to other ones? UK only please