Give your artwork the illusion that it is floating
How to Make Your Own Canvas Float Frame - The Sweet Beast
Amazon.com: Wall-Art Supplies DIY Floater Frames for Canvas Paintings,1.25" Deep Picture Frame,Floating Frame for Canvas Prints,Canvas Floater Frame(Black 24×32 inch)
Finesse your Canvas Print with a Floater Frame – Custom-Made Canvas Prints and Picture Frames
Creative Mark Illusions Floater Frames - 9x12 Black/Antique Silver - 4 Pack of ¾'' Deep Floating Frames for Stretched Canvas Paintings, Artwork, and More - Walmart.com