I started building a bike shed during the 1st year of covid of the course of 2 or 3 weeks. I made the foundation and the sides myself and had help from my dad to complete the roof and doors. It was a nice change from work and looking after the kids and every time I walk past it it feels like an achievement and a shared experience with my dad. I spent about the same on wood and fittings as I'd have spent on a crappy self assembly plastic equivalent and I got to make it exactly how I wanted it.