The dresses are always beautiful and the dancers swish them around with graceful movements sometimes balancing pots or bottles on their heads.
A dance which is indiginous to Paraguay is the 'Bottle Dance'
The dancers start out with one bottle balanced on their head as they dance. Then they begin adding more bottles one at a time. Depending on the experience of the dancer there may be more than ten bottles at a time.
You can see examples of the traditional Paraguayan dances at these links.