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Good plan I have two small tables - one pla one colorfabb woodfill. I'll hide them somewhere :-)

Pla is good for outdoor use, best would be pet-g. Both come in massive numbers of colours.
I'm with whirly the wood makes the filament very weak. wood coloured pla or pet-g would bemuch bettet

well the pla side of things will be fine.
What the wood part will do - that's another issue.
You could have issues with the wood absorbing water and maybe splitting the layers, possible the wood...