@joshu Once a year, every year. I still haven't figured it out. I think some sort of adhesive spray may be the way to go. x.com/igb/status/792…

@joshu FWIW, the stiffer the stencil paper the better off you will be.

@joshu That said (depending on the powder) things will always be a bit messy.

@joshu This is why I think a spray of some mild adhesive over the stencil before adding the powder is the way to go.