I have often looked at photos of cute bento boxes and wanted to give it a try, but have not been able to even guess at what the food pictured is, let alone how to prepare it. But I'm learning. This was my son's lunch today. What you see here is: onigiri (rice balls), mochi (japanese cookie), a hard boiled egg, and orange slices.
The onigiri was a first for me. I was surprised at how easy it was to make. I used a plastic mold, similar to this. It's important to use short grain rice, or it won't stick together. It is also necessary to use the mold while the rice is still hot. I just added some salt to the rice before I put it in the mold. I also used cucumber as filling. After I took the rice out of the mold, I wrapped a tiny strip of nori around each roll to keep it together. A special mold is not necessary though. Go here if you want to see how to make onigiri without the mold.
The mochi was something I found at an Asian grocery store called Uwajimaya. They're made with rice powder and are very sweet. They have a gelatinous texture to them that is unique. My kids love them. Here's a link to them on Amazon, although I did not pay as much as the price that's listed.
The egg looks like a teddy bear because I used a mold like this. The boiled eggs have to be hot when you put them in the mold- so peeling the shell off does make for some ouchie fingers. It's cute though. The lunch box is a laptop lunch box. It was easy to put this lunch together the evening before since I was already making rice for dinner.