Count and record.
Line up lots of different bottles that are empty or tins that have been washed (make sure they are not sharp). Throw a ball at them. If you haven't got a ball use a shoe or pebble etc. How many did you knock down? Count and write how many.
Can you knock more down than other people? Who knocked down the most or least? How many more do you need top knock down to get to 6?
Maybe you could decorate the bottles or tins.