Party cup is designed for fun and funky looks while drinking. It presents beautiful lights when cups collide. Any container can hold drink or alcohol is considered as the model of party cup. Mostly glass of wine or whisky shows and reflects fancy LED lights. It has a button to switch off while the cup or glass is not using.
It can used at any occasions of party. When there is a family union for Christmas, birthday or other festivals, party cup can be used. Places like bars or clubs will use this kind of glasses a lot. Not only helps people to interact with each others more, but also to reflect the light in the dark and find the container easily.
Regarding interaction modes, there are many ways. For example, it shows colourful flashing light while adding drink. Also, if glasses collide, the glass reflect different colour of lights for few minutes. The impact of two different colour gives a third colour according to the primary colour theory. Like yellow mix with blue is equal to green.