Yet another new credo suggestion, may be too jack of all trades for the credo concept though.
Requires Tailor, Scholar and Blacksmith.
lvl 1: +25 Sewing, Smithing and Psyche
lvl 2: +10% to Workstation quality
lvl 3: Can create "Neat Ideas"
lvl 4: Can combine "Neat Ideas" into "Confounded Contraptions"
lvl 5: Chance at duplicating "Neat Ideas" and "Confounded Contraptions" with chance of destroying/combining them.
Once you reach level 3, whilst using a workstation you have a small chance of having an "Idea!". This "Idea!" will have a dynamic recipe (sketches already use this mechanic), likely ingredients would be: boards, blocks, bars of metal, nuggets, string, leather, cloth, dreams. The "Idea!" itself could tell you what buff it could give an item (+q, +speed, +chance of extra output, +chance of success, other things?), or you could have to create the "Neat Idea" to find out. When constructing a workstation they take an optional material which is a slot for an "Neat Idea" or a "Confounded Contraption".
When attempting to duplicate ideas/contraptions (mechanic could be right click and select duplicate from flower menu and requires parchment which will then create an "Idea!" which can then be sold (perhaps)). Duplicating has a chance that the thing is destroyed, or you realise that having combined them this way was a bad idea and they fall apart or you break it and it goes back to being "Ideas!".