The U.S.P.S. should be this savvy with its marketing. Here postage stamps are cross merchandised along the shelf edge with bulk-pack #9 business envelopes. No need for small business to run to the Post Office too. You can pick up your postage right along with your office supplies. Just as the sign says, pick up at the checkout on your way out. CLICK the thumbnail for a better look. The promo piece clips right into C-Channel

For other posts where silhouetting is used see…
Bolt-Down Literature Holder
Flag Arm Has Skeg for Stability
Arm for Circular Foamcore Sign
Die-cut Shelf-Edge Branding by Butterfly
See-thru Retail Sign Strategy
Totally-Visible Total Girl Sign
Sign Circle: Table Stand
Sign Circle: Faceout Mount
Sign Circle: Direct Bar Mount
Sign Circle: Vertical Bar Mount
Sign Circle: Horizontal Bar Mount
Sign Square: Faceout Mount
Sign Square: Bar & Rack Mount
Sign Square: Shelf Edge
Sign Insert is Die-Cut Shape,”
3-Way Sign Clip Creativity,”
Odd Holder Violates Silhouette,”
Shelf Edge Micro Flags
Shock Absorber for Foamcore Sign
Clip Adds Speech Balloon to Merchandiser
Category Definition via Foamcore Sign Masthead
Cross Sell Postage Stamps at the Shelf Edge

For a visual Pinterest Board summary see…
Silhouetted Sign Strategies in Retail

For Postal and Office-service related posts see…
Paper Well-Presented
Clip-on Pegboard Straight Entry
Mailbox Point-of-Purchase Sign Promo
Miniature Wood Crate as Shipping POP
Office In-store Mailing Service Promo
Santa Mailbox In-Store
Santa Mailbox In-Store Redux via YouTube
Famous Fashions for Anglophiles
Cross Sell Postage Stamps at the Shelf Edge
Direct-Mail Direct from Store
Postage-Paid Greeting Cards

For a visual Pinterest Board summary see…
Office Services Retail Merchandising and Fixtures

For alternate shelf-edge messaging see…

Label Strip Substitutes for Cross Sell Signs
Shelf-Edge Philosophy of the Philosophy Brand
Neiman Marcus Dollar Store Motif
Buy-Big, Save-Big at Shelf Edge
Don’t Flip Your Lid
Cross Sell Postage Stamps at the Shelf Edge” (This Post)