It would be feasible to make a "shock blade dagger" which is a use-activated 1st-level shocking grasp. The estimated cost would be 2,000 gp, and you couldn't add your Strength modifier to damage, but you would be able to apply precision-based sneak attack damage to it.
__________________ "...I worry that modern gaming is gradually shrinking the wide spectrum of gameplay mechanics into a single narrow red bar with "KILL" written on it sideways. Exploration, navigation, puzzles, platforming, all gradually shrinking away until only one thing remains, being taken by the hand from room to room, moving on only when nothing remains alive in each one." - Yhatzee Crosshaw