Like I already said, you need not always spend on expensive toys and remember activities need not always be complicated.
Plan activities with whatever you have at home – even for this activity, if you don’t have play dough, make your own play dough or use spoons & ladles from your kitchen- look for alternatives. Learning begins from our environment.
This activity in particular : We have used only play dough, I did the yellow ones and Chintu did the blue ones. While he was trying to replicate what I did, he had better understanding – hands on learning never fails.