This example is an oxymoron because Nage is holding a plastic glass. Glass drinking glasses probably work even better because of the harder edge. They will do considerable damage in someone's face and they are not likely to break.
For this technique it does not matter whether the glass is full or not. If the glass is full it might be a little messier but the contents might also add to the injury.
|Fig. 1 Hold Glass||Fig. 2 Start Strike||Fig. 3 Hit|
The cup is used just like the glass in Example 1. Aikido recommends holding a cup around the body and keeping the elbow down underneath the cup when drinking. This is much safer if someone tries to knock the contents into your face. You can easily flip it back towards the attacker. Holding the handle with your elbow out to the side leaves you very vulnerable. For the technique, hot liquid in the attackers face is probably not your problem.
|Fig. 4 Hold Cup||Fig. 5 Start Strike||Fig. 6 Hit|
The bottle is used just like the glass in Example 1. This is a small Soy Sauce bottle but beverage bottles work also. If you raise a bottle over your head like a Shomen Uchi to strike with it, the bottle is perceived as a weapon, and the attacker reacts accordingly. This way the attacker is not likely to see the counter attack coming.
|Fig. 7 Hold Bottle||Fig. 8 Start Strike||Fig. 9 Hit|
Many other cylindrical objects also work well and are used the same way. Examples are drink cans and cans that food is canned in. In Aikido and Kuta we usually strike the face but punches like these to the chest are also very effective.