Funny Tip Jar Bubble-free stickers, Afraid Of Change Leave It In The Tip Jar, Gift For Barista, Tip Jar Signs. Makes a great gift for your favorite bartender, deli counter worker, baristas, etc.. These stickers are printed on durable, high opacity adhesive vinyl which makes them perfect for regular use, as well as for covering other stickers or paint. The high-quality vinyl ensures there are no bubbles when applying the stickers. • High opacity film that’s impossible to see through • Fast and easy bubble-free application • Durable vinyl, perfect for indoor use • 95µ density Don't forget to clean the surface before applying the sticker.