Dress patterns found on Etsy.com

baby pinafore self-pub pattern
baby - complete Pixie Pattern Set (over 20) $15
double layer cute kid's pattern, looks self-pub
knitting pattern for a bunny in a dress, PDF. cute.
LOTR plus size Eowyn patterns, $8
easy McCall's patterns, 18,20,22
Butterick, 28-32
McCall's Bridesmaid/Victorian style - 16, 18, 20, 22
McCall's Petite size 12,14, 16, 18 - nice dresses, maybe too small
Butterick Medeival/Ren size 10, 20, 22 - love!
maternity patterns, simplicity, 16, 18, 20, 22
McCalls work clothes 18-20-22-24

other ideas

dad binary tee - etsy
my dad's a geek baby onesie
card inspiration
matching baby and dad duck shirt
baby and dad Hammer shirt
daddy's diaper tool belt
BEST - baby changing station tee