: Brands like Decor8yourlife provide themed packs, such as an 8.25" x 8.25" set featuring 14 sheets of premium 65 lb. cardstock.

For hands-on projects, several retailers offer physical paper products with XOXO designs:

: JGreenPaperStudio on Etsy sells packs of 20 cardstock shapes in multiple colors and sizes, ideal for scrapbooking or gift tags.