What Devin said.
What moment of weakness?
As I read the rules, this is a perfectly legitimate sequence:
I describe a piece of color tech., an Uber Space Destroyer.
You describe some color of your own, attacking my color . “Ha! I have an Super Uber Space Destroyer Destroyer! Zap! Zap!”
I decide it’s not worth making a resources roll at +1 Ob to make my color into Hard Tech in a conflict scene.
You describe my color blowing up, colorfully. “The Uber Space Destroyer is Uber Destroyed by the Super Uber Space Destroyer Destroyer! Super!”
On my next building scene, I roll against Resources to turn that same piece of color into Hard Tech. “Well, the next Tuesday, my other Uber Space Destroyer comes back – the one I lent my Aunt Agatha, whom I haven’t mentioned before, for her honeymoon – and I board it and prepare it for battle. Uh, okay, I made my Resources roll, so I really have it now.”
Once I’ve “established” color tech as existing in the setting and as being somehow connected to my character, I don’t think anything anybody can do can “un-establish” it or somehow disconnect it from my character. If everyone around the table accepted that it’s in keeping with the setting that I had one Whatever-It-Was, it’s in keeping with the setting that I have another one lying around, or another ten.
This is I suppose slightly trickier if I describe my color tech as rare and irreplaceable:
“Look! My character’s got the Mona Lisa next to his zero-g waterbed! On my next building scene I’m gonna make a Resources roll to turn it into a +2D to Etiquette…”
“I blow it up!”
But I’d argue that this actually just establishes a whole collection of unique and irreplceable items as color tech appropriate for my character:
“Well, okay, now that it’s my building scene, I should mention that I obviously have Michelangelo’s statue of David in the guest bathroom, so, um, +2D skill advantage, five points; categorical limitation, only with art lovers, -1 point; that’s a Resources obstacle of four. [dice clatter] Got it! So I invite the Lord Steward over and say, Sire, I know you collect art…”