Paddle switch Pass and Seymor model RCD38
Nothing easier.  Attach 2 wires (+ground). 


Attach the neutral wire to the silver screw on the receptacle side.  
Attach the always-hot wire to one of the brass (traveler) screws on the 3-way switch side. 
Don't break off the tab. 


If you don't like which throw is "on", move the always-hot wire to the other traveler screw.