We are glad that you enjoyed the LEGO Bots Robotics camp with us. At camp we use LEGO WeDo 1.0. However, these kits are no longer produced and are considered legacy. Therefore, they are rare and costly. You can find a link to buy a LEGO WeDo 2.0 kit below. It is another "sandbox" robotics experience that connects via bluetooth. Make sure you have a compatible device for the WeDo 2.0 software before you buy anything. The software is free. You may also want to explore other robotic options that LEGO offers.
LEGO also provides free training exercises and teaching material for WeDo. These materials are meant for teachers, however, parents can easily follow the instructions to make a fun weekend family project. Your kids would be proud showing off what they learned in camp.