"Purchase for a Purpose," a fashion and Silpada Sterling Silvery Jewelry Trunk Show, will be held from 6 to 8:30 p.m. March 15 at the Cornucopia Cancer Support Center, 5517 Durham-Chapel Hill Blvd., Suite 1000, Durham. Attendance is free. Proceeds will benefit Cornucopia's programs and services. RSVP to 919-401-9333.

The UNC student chapter of A Drink For Tomorrow will sponsor the "Toast For a Cause" banquet from 6 to 8 p.m. March 21 in The Great Hall on the UNC campus. The banquet will include speakers, musical performances and a raffle. Proceeds benefit A Drink For Tomorrow, a nonprofit that strives to combat the global water crisis.

See Facebook.com/adft.unc.

The UNC Association of Nursing Students will hold the first Heels for Healing 5K and fun run March 31 starting at the Old Well on the UNC campus.

Prices are $20 for the 5K, $10 for the half-mile fun run. Proceeds will benefit Bounceback Kids, a Triangle nonprofit that serves children with life-threatening medical conditions and their families and caregivers.

Call 919-744-8032 or see bit.ly/AdYKTz.

Registration is open for Chatham Habitat for Humanity's Third Annual Chatham 3RingCycle, set for 8:30 a.m. May 12, at the Central Carolina Community College campus in Pittsboro.

The bicycle ride features 30, 60, and 100 mile loops. Pre-registration for adults is $40; $45 for walk-on registration. Pre-registration for ages 16-18 is $30; $35 walk-on.

Sign up at ChathamHabitat.org/ 3RingCycle .