In my past here, when I started this hobby, I was able to build different antenna's, starting from Multiband Dipole, Morgain 40/80, Quad and Yagi.
I have build my QRP Station the SW20+ from Small Wonder Labs and with my great surpise, the little trasmitter start to work very good almost immediately; I was helped by a friend to setup perfectly the rig, and now is working great !
Now my QRP home made station needed a home made key .... so I started looking for something nice small ... At the end I found this fantastic Horizontal Key from Kent .. few components, a couple of hours to assembly and ready to go immediately !