Often a person chooses to build their own boat because they want to make their own design, not some cookie cutter plan they found on the internet. They want to make something that is completely their idea to a great extent. In fact this is what gives a boat radio communications enthusiast the most satisfaction. The awesome thing about building a boat is that you can modify it to fit your own personal style and requirements.
house building games appeal to both boys and girls. You can help the younger ones with their play. Help them build a house and add a fence and then create a story! You can do all of that with used Legos. You don't need brand new bricks for play. There are bags of toy bricks for sale online. You can buy small sets of used accessories and buy a new set of, say, Hagrid's Hut, as the main present. That lets the child have a new present to open and enjoy, and the supplemental batch of toy brick is ready at hand.
Each and everyone have his own shed requirements. Some want to use it for storage while others want to use it as a hobby room and so on. Many construction companies provide lean to shed plans made by their professional engineers and architects. These plans are well calculated and well estimated. Moreover, all the necessary diagrams are part of plan. So it is easy to visualize a shed design before construction.
You should now have something that resembles a bug. Spread the wings apart and write a secret message inside. This makes a cute Valentine for special construction friends family or teachers.