I don't remember where I saw the recipe for this, but I decided to make cornstarch and soap play dough.
What you'll need:
a bowl
soap (we used Dial brand Pomegranate & Tangerine 7.5 oz bottle)
cornstarch
a tray and toys of choice (this is how we choose to play)
After my son got tired of pumping the soap I took the top off so he could just pour it in the bowl.
We added about equal amount of cornstarch to soap. Maybe a little more cornstarch than soap as my son wanted to add the cornstarch himself.
At this point I took over mixing for my son. The mixture turned into a frosting like consistency, then my son added more cornstarch. It then turned into a dough. It was totally different than play dough. It felt silky like soft toffee without the stickiness. It smelled lovely.
We played for over an hour.