Electromagnetic pulse grenades damaging to electronic equipment.
Old-school fragmentation grenades. They can be thrown a short distance, where they'll explode, damaging anything and anyone nearby.
Glass bottles filled with flammable liquid, with a burning cloth in the neck. A favorite weapon for hooligans and desperate warriors from rim to rim.
Grenades loaded with liquified tox gas. Upon landing, they stick to the ground and release tox gas for several seconds.
Tox gas burns the lungs and eyes, causing a temporary shortness of breath and reduction in sight. Continued exposure to tox gas results in toxic buildup which can be lethal.