We just added these bowls to the store called the Mac & Cool. It's a plastic bowl with a cap on the end and you fill the bowl with water. You freeze the bowl and then place the food in the bowl to cool it down. I used these personally 4 years ago when my son was starting to eat regular food. It was such a pain whenever I would make gook bap (soup & rice) to first cook it, then wait till it cools down before he ate it. This whole process took so long! Frustrated, I happen to see this bowl on HGTV. I ordered it and loved it! I also gave them away as gifts and they were always a hit! Plus it's good for any budget! Click here to order.