Throwing LO a (pink not red) Minnie Mouse themed first birthday in 2 months (AHHH!)

All I have thus far is this headband.

Wanting preferably a dress or longer tunic she can wear with leggings, but open to anything really. We live in FL so it will be warm. LO just started walking so I love how little adult clothes look on her. Thinking of something simple. MAYBE something I can put her name or a monogram on the front.

Nothing too pricey. We typically shop stores like H&M, old navy, target. It'll be 9-12 month size probably- she's still in 6-9 months size at 10 months, even though she's big for her age! (I don't get it either. But I swear her clothes fit her.)

Bonus: any party/decor ideas welcome too! It'll be a very small party.