what do you do when family starts buying unnecessary things for baby?

mo
It's not that I'm not grateful but I feel like we told them we were pregnant they waited until they knew the gender now all they're doing is buying things. My MIL bought a Moses basket and I don't even think I'll use it and I don't want them to spend all their money on stuff like that.. they haven't even asked what we need it's more like they're deciding for us.