1 Battle of the Air Potatoes: Boyd Hill Nature Preserve has come up with a genius way to drum up volunteers: Have a competition to see which team can collect the greatest number of those nasty air potatoes, the invasive Asian vine that threatens to overrun Florida's swamps because the toxic yam can grow up to 8 inches a day. For Saturday's competition, assemble a group of friends, come up with a team name and hunt for air potatoes. There will be prizes for smallest, largest, most perfect and strangest air potatoes. It's free at 2 p.m. Saturday at Boyd Hill Nature Preserve, 1101 Country Club Way S, St. Petersburg. (727) 893-7326.
2 Motorcycle Expo and Bike Builder Invitational: Motorcycle builders from across the country compete for best bike at Quaker Steak and Lube this weekend. The event will have a giant ride-in motorcycle show, giveaways, vendors, fireworks, the Miss Full Throttle bikini contest, a wing-eating contest, three days of live music and guest appearances by Paul Sr. and Rick Petko from Orange County Choppers. It's free at Quaker Steak and Lube, 10400 49th St. N, Clearwater. It runs 5 to 8 p.m. Friday, 10 a.m. to 8 p.m. Saturday and 10 a.m. to 6 p.m. Sunday. (813) 814-1424.
3 Touch a Truck: This wildly popular annual event lets kids climb on and play around an assortment of vehicles including fire trucks, dump trucks, motorcycles, buses, military vehicles, an 18-wheeler and more. There will also be inflatables, train rides, rocket ship rides and a food court. Free, but some attractions require a $5 wristband. It's from 11 a.m. to 4 p.m. Saturday at Largo Central Park, 101 Central Park Drive. (727) 587-6740, ext. 5014.
4 Sunday Bicycle Rides: This week's group ride meets at the HCC Tennis Courts for a free 14-mile trip touring waterfront homes, the airport, dog park and boat basin around Davis Islands. Helmets are required and riders must maintain a speed of 10 to 14 mph. Riders should meet at the Hillsborough Community College Corporate Training Center, 39 Columbia Drive, Tampa, at 8 a.m. Sunday.
5 Tampa Bay Home Show: The largest home show on Florida's west coast brings the area's top home improvement experts, along with more than 500 exhibits with everything related to Florida homes, home improvement, home entertainment and landscaping. It includes live entertainment, seminars, demonstrations, giveaways and do-it-yourself ideas from experts. Hours are 10 a.m. to 6 p.m. Friday, 10 a.m. to 7 p.m. Saturday and 10 a.m. to 5 p.m. Sunday at Tropicana Field, 1 Tropicana Drive, St. Petersburg. (727) 893-8523. Free.
Sharon Kennedy Wynne, Times staff writer