Kids like to have variety in their lunch boxes and there is nothing wrong in their likes.Instead of filling their lunch boxes with pizzas, burgers and puffs, one can very well do with shapy idlis.
This does not require any special skills. All you have to do is instead of the regular idli plates, take a round small plate which has a slightly up sides see pic.,
You can make it colorful by mixing pudina, coriander chutneys, Idli chutney powder, tomato chutney,this will give them the taste and flavour. A mother knows best.
These shapes are available in Spencers in the Cake section.
When my Baroda grand daughter asked me to make dosas in the shape of star, smily, and crescent, I was surprised, later made and gave as my daughter used to make for her.