So instead of getting lucky and hoping you can buy both matching items in shop, allow shops to offer bundles.
Maybe with a max worth of 1000T$.
So if you match 2 500T$ worth designs, you can't add a 3rd design to the bundle.
I dunno, stuff like:
Snowman skin, button eyes, carrot nose
Yoshi head, Yoshi clothes
Elsa hair, Elsa dress, Elsa tiara
Those types of things could be a bundle. With the option to buy separately or buy the bundle.
I like this idea, because what if you want to buy a holiday theme costume or something like that, why can鈥檛 we just buy it as a set instead of buying it separately