Hearing loss and aging: Two doctors will discuss hearing loss, tinnitus management and hearing aid options for seniors, from noon to 1 p.m. Tuesday at the Memorial Hospital Auditorium, 2901 W Swann Ave. Free. Lunch will be served. To RSVP, call (813) 342-1313.
Government grants: Guest lecturer Marilyn Hoyt, a veteran fundraiser, will give a two-hour workshop on the types of government grants and how to find them in changing times. 2 p.m. Thursday at John F. Germany Public Library, 900 N Ashley Drive. Free. Call (813) 273-3652.
Weight loss surgery support group: This support group is designed for those interested in weight loss surgery. Post-op patients will share information on pre- and post-surgical issues. 6:30 to 8:30 p.m. Thursday at the Tampa General Hospital Rehabilitation Center, second floor, Rehab Activity Room, 1 Tampa General Circle. Spouses and friends welcome. Not suitable for children. Call (813) 844-7473.
Buddy Baseball: Sign up through Jan. 4 to take part in this noncompetitive league for boys and girls with special needs. A buddy is paired with each player. To register as a player, buddy or coach, go online to buddybaseball.org. The season begins Feb. 9 and continues on Saturdays through March 30 at Temple Terrace Family Recreation Complex softball fields, with an end-of-season party on April 6. Boys and girls between ages 8 and 22 with special needs are eligible to play. Buddies must be 10 to 18 years old. Cost is $30 per player, $15 per buddy, and no charge for coaches. (Scholarships are available.) For more information, contact Russ Oberbroeckling, Buddy Baseball commissioner, at (813) 416-5742 or e-mail firstname.lastname@example.org
Tree auction: The Carrollwood Cultural Center has a silent auction where visitors can bid on holiday trees with varied themes, from comic book heroes and wine lovers to sports and military enthusiasts. The trees were conceived, donated and decorated by Denise Deneen, Shirley Overton and Cheley Buff, who spent more than 90 hours to decorate and install the display. More than 25 trees are on display in the lobby of the center, 4537 Lowell Road. Bid sheets are placed near each tree and the public can visit and place bids during business hours — 9 a.m. to 6 p.m. Monday through Friday, 10 a.m. to noon Saturday — or while attending any of the concerts and events held at the center. Bidding closes at 3 p.m. Dec. 16 and winning bidders must be willing to pick up their trees between 4:30 and 7:30 p.m. that day. Funds raised by the auction will directly benefit the community theater group at Carrollwood Cultural Center. For more information, call (813) 269-1310.