If you're the kind of mom who enjoys subjecting her kids to matching T-shirts, you're in luck! There are a ton out there — and if you've got three kids, there's potential for a triple dose of potential cuteness in the form of T-shirts made for oldest, middle, and youngest siblings to wear together.
Whether you're dressing all sons, all daughters, or a coed mix, going for sweet, silly, or some other vibe, heres's proof there's a set of sibling shirts that suits any family dynamic.
Haha, doesn't #3 fit to a tee?
Image via SimplyCasualKids/Etsy
Superheroes Plus Sidekick

These "superheros plus sidekick" sibling shirts are the perfect way to inspire acts of heroism on the home front (like volunteering to change baby brother's diapers, perhaps?). $45 for the set @ REVOLUTION46R46/Etsy
Just the Right Size

These sibling shirts break down your little tykes by size: S, XS, and XXS. Plus they're DIY with iron-on vinyl; instructions available at Sugar Bee Crafts.
Rock, Rule, Drool

Metalheads families will love these skull-and-crossbone sibling shirts where the kids rock, rule, and drool. $45 for all three @REVOLUTION46R46/Etsy
Troublemakers

All kids are troublemakers, so why not make it official with these "troublemaker" sibling t-shirts? $19 apiece @ Footsteps Clothing
More from The Stir: 7 Hilarious Maternity Shirts Bound to Crack You Up (PHOTOS)
Those Are the Rules!

These "rules" sibling shirts really sum up the order of things, don't they? $44 @ SimplyCasualKids/Etsy
Sister Silhouettes

It doesn't get sweeter than turning three sisters' silhouettes into shirts, complete with their names and choice of color/pattern ribbon in their hair. $22 apiece @ EmmabellasDesigns/Etsy
Ninjas Unite!

For boys who love Teenage Mutant Ninja Turtles, it doesn't get better than these ninja sibling shirts with their own choice of color for a mask. $23 apiece @ DipsyDoodlebug/Etsy
By the Numbers

These sibling shirts break your brood down by order of appearance — 1, 2, 3 — personalized with their names. That way, no one ever forgets the pecking order! $48 @ Zoey's Attic
More from The Stir: 10 Tasteless Shirts No Teen Should Be Wearing
1 of 3

These sibling shirts are all labeled the same — 1 of 3 — but come in different sizes so they'll fit trios of any age. $15.95 apiece @ Zazzle
Big, Middle, Lil'

These sibling shirts come completely customizable with your kids' names and favorite theme: football, dinosaur, butterfly, and eight other options. Let's just hope they all like the same thing! $24–$26 apiece @ Polka Dot Pair
The Rules Revisited

Every family has 'em: rule-makers and rule-breakers. And in case these labels don't always fall the way you think they will, these rule-maker/breaker sibling shirts give you the flexibility to choose what fits for each member of your brood (hopefully they're not all rule-breakers). $19 apiece @ Footsteps Clothing
More from The Stir: 15 Incredibly Offensive Shirts for Dads