Facial Hair Friendly Cities Tour: If you’re currently sporting a ’stache, this hairy charity event is for you. Visit the Wahl mobile barber shop this weekend and get your beard trimmed for a good cause. $1 from every free haircut will benefit ZERO—The End of Prostate Cancer, a nonprofit working to fight the most commonly diagnosed cancer in men. Bonus: the visitor with the most striking facial hair will be named the 2015 Wahl Man of Denver. Friday through Monday, 10:30 a.m. to 8 p.m.; Denver’s Civic Center Park

Rocky Mountain STEAM Fest: Burgeoning young makers have the chance to get creative at this exploratory science and arts festival. Fest guests can build with Legos, do craft projects, conduct experiments, race autonomous vehicles, and play with robots. Plus, acclaimed scientist Dr. Temple Grandin will discuss the importance of hands-on learning on Sunday at 2 p.m. Buy tickets for the festival online or volunteer to help encourage kids to build their imaginative minds. Saturday and Sunday, 10 a.m. to 7 p.m.; Boulder County Fairgrounds, 9595 Nelson Rd., Longmont

Nan Desu Kan Charity Auction & Poker Tournament: This annual three-day convention is primarily a celebration of fictional characters—but that doesn’t stop these anime fans from making a big impact on the lives of real animals. After visiting panels of famous Japanese voice actors and browsing a gallery of fan art, attendees can join in a poker tournament benefitting the Dumb Friends League, a Denver shelter that never euthanizes healthy animals. On-site registration for convention day passes and weekend passes are available at the door. Poker: Friday and Saturday, 10 p.m. to midnight; Auction: Sunday, 4 to 6 p.m.; Sheraton Denver Downtown, 1550 Court Pl.

Colorado Runner Labor Day Mini Marathon: If you’re itching to hit the pavement again before summer ends, this is your chance. Participants have the choice between a half marathon, 10K, or 5K on this flat and scenic track along Cherry Creek. If you’re not in the mood to break a sweat, volunteer to help out with registration or at an aid station and get an event T-shirt, plus free entry into a future Colorado Runner event. After the races, both runners and volunteers can enjoy Naked Juice smoothies and free (and locally produced) Noosa Yoghurt or check out vendors such as Koko Fit Club, RNK Running Store, and Arbonne. Monday, 6 a.m. to noon; Salisbury Park, 11920 N. Motsenbocker Rd., Parker

To submit your event or organization for inclusion in 5280‘s weekly “Get Involved” column, email getinvolved@5280.com.