Slip slidin' away 
Slip slidin' away 
You know the nearer your resistance 
The more you're slip slidin' away

If you're tired of the regular-old-twisty potentiometers we carry, why not slide over and try this slide pot? Most famously used on mixers and the transporter control panel on Star Trek, these slide pots are not too long at only 45mm. Use as a voltage divider and you can visually gauge the voltage from low to high. There's a center indentation so you know when you're in the middle. Best of all, it comes with a knob (e.g. nubbin)! 

Comes as a standard 10K ohm linear potentiometer, and it works great for breadboarding and prototyping. You can solder to the 3 legs or sorta push it into a solderless breadboard (or a perfboard with large holes).

It has a nice feel, sliding it back and forth is quite satisfying.