Replacement #3 Cup for Stacking Cup Set

My son lost the #3 cup of his stacking cup set so I modelled a replacement, its not perfect but it works well enough with the rest of the set.

I think the set is the Early Learning Centre Stacking Cups set https://www.babyvillage.com.au/products/elc-stacking-cups

I have not modelled the rest of the set but have included the 3mf file if someone else wants to have a go.