Ten Hands

The following weapons are from Laxmi Vishnu: 

1. Lotus symbolizes creation (srshti bijam tatha padmam), 
2. Discus preservation (chakram sthiti -nibandhanam), 
3. Mace disolution (gadha samhara -bijam) and 
4. Conch emancipation of the soul from bondage ( samkham mukti-nihandhanam) 

Source
[Parama-samhita 3,17; and Brhat-brahma-samhita, 1,12,102-103]

The following are taken from Shiva Shakti

1. plate (kapalam) and 
2. pointed weapon (Malu) . 

The following are taken from Brahma Saraswati

1. One stick (writing tool) is from 
2. One more lotus, Mann Gayatri represents Mind. 

The right hand which shows Abhaya Mudra gives protection. The left hand which points down shows that Her feet are the sole refuge of the individual souls.