Halloween ? I figured out what I want my kids to be for Halloween.. but we’re kind of on a tight…

Halloween ?

I figured out what I want my kids to be for Halloween.. but we’re kind of on a tight budget, and I wanted to see if I could just make the their costume and it be a lot cheaper than it would be if I bought costumes.. I want them to be cruella devile and a Dalmatian.. but kind of clueless on what I can use.. any ideas?? Thank you