As the school year winds down, big events are coming to Round Rock, Pflugerville and Hutto. Here is your weekend roundup of events to fill your spare time this Friday, Saturday and Sunday. May 19-21: Deutschen Pfest The 42nd installment of Pflugerville's German festival will include a Miss Pflugerville competition, a kids coloring contest, carnival, parade and more. Times vary by day. $5-7 for admission. Pfluger Park, 515 City Park Road, Pflugerville. www.deutschenpfest.com May 20: Crawfish, Brew and BBQ Nyle Maxwell's dealership showroom hosts the Crawfish, Brew and BBQ event to benefit the Round Rock Community Honor Flight in September. $250 (tickets), sponsorships available. 3 Sierra Way, Georgetown. www.honorflightaustin.org May 20: Bark-B-Que Cook Off The Friends of the Hutto Dog Park and Starmark Animal Behavior Center present the Bark-B-Que Cook Off fundraiser, which includes a raffle and vendors, live music and Austin Splash Dogs. $150 entry for brisket, pork spare ribs and chicken. $20 entry fee for beans.  11 a.m.-3 p.m. 200 CR 197, Hutto. https://www.huttodogpark.com/events May 21: Car Show at Centennial Plaza The monthly car show is back in downtown Round Rock. Guests are welcome to show off their own cars and share it in the show with fellow attendees. 10 a.m.-1 p.m. Free. 301 West Bagdad, Round Rock. www.roundrocktexas.gov  May 20: Swine and Dine Benefit for the Leukemia and Lymphoma Society The Leukemia and Lymphoma Society are hosting a dinner benefit to raise money and awareness to fight blood cancers. The event will feature food, live music, an open bar and a silent auction. 5-10 p.m. $100 tickets for pre-sale. Bar 3901, 3901 Walsh Ranch Boulevard, Round Rock. https://www.eventbrite.com/e/swine-dine-benefit-for-the-leukemia-lymphoma-society-tickets-33447000880