|Cigarette case hack - now a watercolour palette :-)
|Daniel Smith watercolour sticks used to create a 19 colour palette - no pans needed.
To take it up to 20 colours you could add Indanthrone Blue - a gorgeous rich deep blue, or rich Green Gold - a very green-yellow, or Graphite Grey - a graphite watercolour that is fascinating to use, or raw sienna - I often like to have yellow ochre and raw sienna as extras as well as my favourite goethite since the pigments PY43 and PBr7 mix differently.
A larger palette might fit 24 colours so I'd add the above colours and perhaps Quinacridone Burnt Orange as the 24th. There are 51 sticks to choose from (Update - 62 sticks in 2024. You can see them here)
I have simply wet the bottom of each 1cm of watercolour stick and pressed them into the re-purposed palette, which was an early 1900s cigarette case. Provided they are used with care, and not too much water, this palette is a compact and simple one to use. For an even more thorough seal with the palette, put a drop of glycerine or gum arabic on the bottom of each dampened stick, wait a moment, then press into place.
Happy painting :-)