We made cute invites and mailed them snail mail.  We had several tables set up with white table cloths and cheap, pretty, paper place mats (can use scrap booking paper, too) and had a "manicure set" for each person. (Nail clippers, orange stick, 2 cotton balls, vitamin E gel cap (to puncture and put drops on nail beds), nail polish, lotion and homemade bath salts (really, really easy) - all in a cellophane bag with pretty ribbon and a cute thought card attached.

The tables were set up with each bag (using long tables is easier - they work right across from each other on each other's nails)

We used live, potted flowers (the medium sized pots with cute wrap and ribbon on them.  A center table that had beautiful plants, grasses, water feature and towels on it to "relax".

Soft music playing - like you hear in the spa.

The girls and mom's had a quick devotional that one of our leaders prepared on mothers.  Then, the girls and mom's took turns doing each other's toe and finger nails.  We took pictures and ended with a fun treat.