CO 20 stitches (in this specific instance - otherwise, it's a multiple of 7 plus 6 stitches)
Row 1 (ws): p 6, k1, p6, k1, p6 Row 2: k6, p1, k6, p1, k6 Row 3: as row 1 Row 4: Slip first stitch to cable needle to back of work, k2tog, k1 from cable needle, yo, slip 2 st. to cable needle, hold to front, k1, SSK from cable needle, p1 (repeat across row Row 5: p2, pfb of yo, p2, k1 (repeat across) Row 6: k2tog, yo, k2, yo, ssk, p1 (work across row)
-You and your husband can dress up as corn on the cob, and the baby could be a single kernel, and your 3 year old could be a crow. Just make a flap in your husk/corn kernels (like in a union suit, only for nursing access).
-The Family Guy bunch - Lois, Peter, Stewie, and Brian (the dog - similar in height to a 3 year old).
-To kick it old school, the Jetsons - George, Jane, Elroy, and the baby can be a sprocket (the gear that drives a bicycle chain).
The first thing that came to mind when you said "strawberry goth" is the slogan "I'm the Strawberry Shortcake your mother warned you about."
That said, I think you nailed it with the first two pieces, and the second to last dress (the drop waisted stretch pink number with the black gingham ruffle skirt and pinstripe shrug worn by the model with the dreds). The other items I'd say are Shortcake's friends, but not necessarily Shortcake herself.