The client uses a DoBuggy disabled buggy for her elder child and wishes have the means to take her younger child out with her.
The client bought a BuggyPod clip-on buggy which is designed to clip on the side of most buggies with universal quick-release connecting brackets. However, because of the design of the disabled buggy, the standard brackets did not allow it to fold up.
Additional brackets were made to allow the BuggyPod to be connected and disconnected easily using its standard brackets, and the DoBuggy to be folded as usual.