Try your hand at knitting or meet fellow hobbyists at the Preston Royal Purls Knitting Social at 1 p.m. Friday at the Preston Royal Library. Needles and yarn will be provided, or you can bring your own supplies.

Whole Foods at Preston and Forest hosts the Healthy Cooking Bowl noon-5 p.m. Friday through Sunday. The three-day challenge involves teams competing to see who can prepare the healthiest dishes. Spectators can learn some tips and help decide the winners.

If you’re heading to the mall on Saturday, stop to check out the Big D “Big News” Cupcake Wars at about 3 p.m., featuring local celebrities battling it out for their favorite charities. Contestants have 30 minutes to frost, decorate and display cupcakes, and a panel of judges will decide who wins the grand prize of $5,000.