These Foot Spa pictures will show you some examples and give you some ideas for designing your own spa.
Here's an Elle McPherson aromotherapy foot spa.
Here's an awesome foot spa with wooden bench seating.
Dr Scholls makes an invigorating pedicure foot spa.
Here's a CONAIR bubbling heat vibration foot spa.
Some foot spas actually use small fish to nibble off the dead skin from your feet.