I’ve always wanted to do shoes…in particular shoes designed for me specifically. Shoes are either too sporty or to dressy or too vanilla. I still need to find time to do it as a personal project.
I’ve also thought about doing a toy. Preferably a ride-on toy not made of plastic and without any annoying lights and sounds. My kids’ rooms and living room are full of those so it might be nice to have a simple yet well made toy. It’s also on my list.
Designing airplane interiors is both rewarding and challenging. If you really want to take comfort and user experience into consideration then 1st class and business class give you the most freedom and exciting projects. Sadly, coach flying is more about density than comfort. Often people complain about the seats when in reality the backrest angle and pitch of seats are what makes them so uncomfortable, specially in long flights.