Look, Mom. I know Dr. What’s-Her-Name says we have to do tummy time, but can you please get rid of that minky-dotty thing you plunked me down on? News flash: It’s polyester.

I was thinking we could try one of Cynthia Mann’s new Birch Fabrics play quilts. So many customers at her Paso Robles store (you’ve been there, right?) wanted to use the prints she carries for baby bedding that she launched a line. And get this: Her materials are 100 percent organic cotton — from the batting on out.

She’s got florals and feathers, bicycles and fishing boats, whales and waves — so many California-dreaming options to choose from. You could even get a matching bumper pad and build a whole nursery around the blanket.

Now that’s something we can both flip over.

Available online at fabricworm.com, $110.

INSPIRE
Martin Luther King Jr. Celebration
What: A tot-scaled intro to his legacy through art projects, story time, and SoVoSó’s a cappella.
Why: Pay freedom forward.
When: Today, 9 a.m.-4 p.m. Music at 11 a.m. & 12:30 p.m.
Where: Bay Area Discovery Museum, 557 McReynolds Rd., Fort Baker, Sausalito (415-339-3900). Tickets online at baykidsmuseum.org. Members, $7; general, $16 (includes museum admission).

GAPE
Peking Acrobats
What: Stunning feats of athleticism from the visiting troupe.
Why: Half-price tickets on Sun. for the 5-and-up set.
When: Sat., 2 & 8 p.m.; Sun., 3 p.m.
Where: Zellerbach Hall, UC Berkeley, at Telegraph Ave. & Bancroft Way, Berkeley (510-642-9988). Tickets online at commerce.cpsma.berkeley.edu. Adults, $20-$48; ages 16 and under, $10-$24.

SING ALONG
Keller Williams in Concert
What: The folk-song writer and bluegrass artist shares faves from his album Kids.
Why: An all-ages matinee.
When: Jan. 21. Sat., 2:30 p.m.
Where: Great American Music Hall, 859 O’Farrell St. (415-885-0750). Tickets online at tickets.gamh.com. General, $19.

Photo: Courtesy of Birch Fabrics