I saw this on the blog of kreativa karin, where also the picture are taken from… and I loved it. This is great for spending some time with children and it is cheap. Use some toilet rolls and some colors and let (childrens) imagination work.   
Ovo sam vidjela na blogu od kreativa karin, odakle sam i slike skinula. I ideja mi je preslatka. Super je ako hocete provesti par sati sa djecom, a i jeftino je. Znaci koristite toalet role, bojice i pustite mastu da radi.