Rarity's peeking at you 👀
Borderless cutting works pretty well, but alignment is ever so slightly variable, so I recommend including a bleed color.
Source: Ace-Play's DeviantArt gallery. Used with implicit permission ("Free to use as long as you credit me.").
The mares are staring!
Source:
>"All alone on a Friday night? Golly, you're pathetic."
These are thin matte vinyl (not laminated). Left: The paper backing is cut to match the vinyl. Right: The paper backing is cut farther away, making the sticker easier to peel.
Source: Derpibooru #3307871. Artist: Sollace. Used with permission 
Holographic vinyl with glossy hot lamination. Sadly, she's defective, with some scarring on her lamination and bubbles in her tail. I still love her, though!
Source: Derpibooru #3460676. Artist: Rocket-LawnChair. Used with permission 
Left: Holograpic stars/sparkles. Right: Holographic dots. This is white vinyl with adhesive lamination.
Glossy hot-laminated vinyl zipget (left) and matte vinyl zipget (right) arguing about which is better. My printer turned the plain gray color into shadow-blue! Don't worry, these are just test prints—I'll correct the color calibration if your images print weirdly like this.
Source: /mlp/ post #41192336. Artist unknown. Used without permission
Matte vinyl, hot-laminated glossy vinyl, and hot-laminated holographic vinyl.
Artist: Really Good Comics. Used without permission