Getting the holiday correspondence out before New Year’s? Not likely. But these cards may inspire you to find a mailbox before Valentine’s Day.

Tea Time
Place your perfectly composed image (preferably a candid with a simple background) in the simple yet festive Tea Collection from Tiny Prints.

Paper Hail
You’ll flip over the retro-mod greetings at Greenwich Letterpress and be equally dazzled by the unique loose and boxed cards by smaller companies (like Seltzer, Quantity Post Cards, and Driscoll Designs) at E.A.T Gifts (1062 Madison Avenue; 212-861-2544).

It’s Customary
Control freaks take note: Paper+Cup’s new holiday line offers customizable, flat-printed cards of heavy paper stock. E-mail proofs are free.

Which is sure to get your stamp of approval.

HEAR
Suzi Shelton
What: The family favorite rocks with Sebastian and the Gumdrops.
Why: They’re so sweet.
When: Sun. Doors at 1 p.m.; show at 1:30 p.m.
Where: The Living Room, 154 Ludlow St., b/t Stanton & Rivington Sts. (212-533-7235).

DISCOVER
Archaeology Zone: Treasures from Playgrounds to Palaces
What: Young scientists dress in costumes and determine how unusual found objects relate to their own lives.
Why: You’ll dig it.
When: Thru June 15. Sun.-Wed., 11 a.m.-5:45 p.m.; Thurs., 11 a.m.-8 p.m.
Where: The Jewish Museum, 1109 Fifth Ave., at 92nd St. (212-423-3200).

EXPLORE
Wild Blue
What: Kids learn about their planet — from African villages to coral reefs — at this new East Side adventure emporium.
Why: A colorful event.
When: Mon.-Fri., 9 a.m.-6:30 p.m.
Where: 401 E. 76th St. (212-628-3582).