Amazon.com : Set of Four - 24 Inch Hanging Poster Rail for Windows, Includes Two Suction Cups with Hooks, Two Rails per Set, Acrylic & Plastic (Clear) : Office Products
Sign Display 17"W x 11"H Window Poster Holder with Suction Cups
Poster Hangers | Window Display With Suction Cup Attachment - 36"w
Clear Acrylic Window Sign Holder for 22 x 28 inch Poster, with Suction Cups, Slide-in Frame (GLPH2228) - Walmart.com
Amazon.com : Set of Four - 24 Inch Hanging Poster Rail for Windows, Includes Two Suction Cups with Hooks, Two Rails per Set, Acrylic & Plastic (Clear) : Office Products
Source Suction Cups Acrylic Landscape Window Poster Holder, Unbreakable PETG Sign Holder Ad Frame, Window Sign Holder with Suction cup on m.alibaba.com
Suction Cup Sign Sleeve | Clear Plastic - 24 x 36 Posters
vinyl-suction cups | megaprintinc
Poster Hangers | Window Display With Suction Cup Attachment - 36"w
Suction Cup Poster Hanger | Window Display - 24" Width
Amazon.com : 11 x 17 Poster Sleeves with Suction Cups for Window Displays and Adhesive Tape for Wall Mount, Plastic (Clear) - Set of 10 : Office Products