Choose ivory or transparent, sanded on one side and shiny on the other.
28( 2 sheets ) shrink-plastic flower shapes in pre-cut sheets.  these precuts contain some detailed petals so use care to safely punch the flowers out. Use a sharp tool such as the tip of scissors or a stylist to punch around the perimeter of each shape this helps release it from the plastic salvage, small  tears that may happen will mostly fuse back together when shrunk.