You will need some cornstarch and a bottle of the least expensive conditioner you can find. I found this apple scented kind.

Add 1 part conditioner and 2 parts cornstarch.

Mix until a dough forms.

If the dough feels a little sticky, just add a tad more cornstarch. If the dough feels dry, add a tiny bit more conditioner.

If you want, you can add some food colouring.

Store in a plastic bag or container. The dough may dry out a bit while in storage. Just add a bit of conditioner and it is good as new. Have fun!