I love DIY. costumwz over bought. Unfortunately some of my DIY cost more than bought becuase I don’t sew
I made Wonder Woman for my daughter a few years of years ago (she was about 8).
Though I bought some things, many of the other things she ended reusing in everyday for school. So i consider that a win,
Red tank top or red shirt (make shirt). I found a picture of a Wonder Woman logo, printed it, traced I on the back of a cereal box, cut it out, then painted it gold, and outlined it in black, and covered it in clear packing tape and Velcro to her top
Cuffs and hand band were done the exact same way, but I used those form sheets because it was more flexible for the cuffs. I found glitter star stickers, but again yo7 can make them, I didn’t think it was worth it.
Lasso of truth was a broken skipping rope painted with the same gold, thick rope would do.
Bottoms, in my case I had found som leggings at old navy that had stars on then. If you are in the US, I found tonnes of places that had nay or deminm bottom with stars (I am in Canada so it was harder). My back up plan was to use one of her heavy leggings or bottoms and stick white foam stickers. We had shorts we would have layerd over something .
For the boots, she already had black hig( boots, and she didn’t want t(e red, s9 we jus5 went with tha5. I debated spray paint some boot or making covers, but if yo7 can see that wouldn’t cost verymuch.
The supply list is pretty inexpensive
Red top
Navy or denim bottoms
Cardboard -like cereal box thickness
Paint
Thick rope or skipping rope
Velcro