Builder (D20 Modern Feat)
From D&D Wiki
You have a knack for constructing things.
Benefit: Pick two of the following skills: Craft (chemical), Craft (pharmaceutical), Craft (mechanical), and Craft (structural). The character gets a +2 bonus on all checks with those skills.
Special: You can select this feat twice. The second time, it applies to the two skills you didn’t pick originally. Remember that Craft (chemical), Craft (electronic), and Craft (mechanical) cannot be used untrained.