Making 'Prop' Entities
From The DarkMod Wiki
Prop entities are stored in tdm_prop_wearable_items.def and tdm_prop_items.def. 'Wearable_items' are things an AI might wear (headgear, belt-buckles, etc), while 'prop_items' are for things an AI would carry or attached to a belt (weapons, torches, keys, potions, etc).
An entity definition for a prop item looks like this:
entityDef prop_spectacles { "inherit" "func_static" "model" "models/darkmod/props/wearables/spectacles.ase" "joint" "Head" "solid" "0" "origin" "4 -5.5 0" "angles" "85 -85 3" "remove" "0" }