In short: shooting game from various, increasing distances from the basket.
Organisation: pairs per basket. Preferably also about 6 markers per basket, but this is not necessary in the hall, where there are usually enough lines (stripes) on the floor.
The first shooter of each group starts shooting at 2 meters from the basket. After scoring, he/she starts shooting from 3 meters distance. When he has scored from there too, he will shoot from 4 metres and so on. When the shooter misses, it's the other team's turn. Which of the shooters has scored first from each 'line'?