dj giveaways

My daughter is planning to have 100 guests at her party. It will be a masquerade theme so all guests will get masks and we also have party favors for them.

How many dj giveaways should we order in total for 100 guests? We are planning to giveaway an assortment of stuff - glow sticks, metallic beads, streamer wands, tinsel maracas, etc.

(Each person does not get 1 of each item, right?....if so, then that would be very costly!)

Any help with the calculation would be appreciated.

Thank you!