Popsugar Parenting Birthday Parties Unicorn Goodie Bag Ideas 30 Goody Bag Fillers For the Ultimate Unicorn-Themed Birthday Party 30 May 2018 by Alessia Santoro View On One Page Photo 13 of 30 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 13 Unicorn Birthday Cake Slime Unicorn Birthday Cake Slime ($8 and up) Unicorn Birthday Cake Slime $8 from etsy.com Buy Now Previous Next Start Slideshow Birthday PartiesUnicornRainbow