My most favourite thing to make would probably have to be chains. Although they are rather time consuming & tedious - making all the links, joining them all together, soldering them all closed, filing each link etc, the whole process tends to have a relaxing methodical effect on me.
I admit, I do get a little anxious when I'm making a custom order for something I haven't made before, it is a little nerve wracking. But once the piece is finished I am so pleased with the results, no matter how complex the design.
But there's something I find so comforting with making chains. Nothing beats pulling a freshly polished chain out from my tumbler.
Even if it's the most simplest type, once all the solder joins are filed, all the links pre-polished & tumbled, they always come out so shiny & fabulous looking.