I used an old gift card to help spread and smooth the plaster on some places on the sword. The plaster takes about 2 hours to dry completely. If you’re buying the costume complete, same caveats as above apply — look carefully at sizing and delivery dates. Uses. Halloween Costume, Costume Party, power ranger adult costume Entertainment. Sep 23, 2019 – Magneto’s costume is an upgraded homage to his classic one. She’s due back on Earth later this month, but she’ll return as a space cosplay champion.