TOKENS for counting points

If you wanted to you could probably keep track of everyone's points with a notepad and pencil, like a game of scrabble - except you can lose points too in the CONSERVATION game.
 
The coloured tokens are a good visual way to add up your individual points or your whole group's points if you are working towards a goal eg 100 points is a good target for 4 players.
 
yellow = 1 point
blue = 5 points
green = 10 points
red = 20 points
 
Bob's original rule said tokens cannot be exchanged eg you can't swap 2 x blue tokens for 1 green.