- STAMPERS ANONYMOUS-Tim Holtz Collection Cling Rubber Stamps. These red rubber stamps come mounted on cling foam so you can use them with any acrylic block (sold separately). Great for using with Tim’s signature distressing techniques! Stamps come on a 3-hole punched sheet for easy storage in the Tim Holtz Stamp Storage Binder (also sold separately). This package contains Grunge Alphabet: one cling rubber stamp mounted on an 8-1/2×7 inch backing sheet. Made in USA.