Halloween // Help, couple costumes

My boyfriend (indian/african) and i (white latina) need some ideas for couple/matching costumes. We wanna match, but dont want the typical store costumes you can buy last minute. But we can’t come up with much. The only one is Isabella and Baljeet from phineas and ferb haha. Doesnt have to be true to our appearences like them, but something alone the lines would be funny. Any suggestions?