A U.S. crochet designer, Laura Celmo Kelly, went viral after sharing photos of her whimsical "Sheila" — a crocheted "book underwear" (bookthong) designed to be tucked into a book like a bookmark. Embellished with flowers, cherries and rainbows, the piece’s back is meant to slip between pages to mark your spot. Kelly sells the pattern on Etsy for about $4 and says it’s suitable for beginners to intermediate crafters. The design has drawn playful praise online as one of the year’s most creative patterns, with some calling it cute and others jokingly critical. Independent booksellers in Korea say local crafters could easily replicate the pattern, and Kelly hinted at holiday versions like a Thanksgiving edition. (Note: Etsy is an online handmade marketplace.)