1 player sits on a skirting board (2 parts of it) with feet on the ground (in proper position like reception) on the 3m line and plays the ball in reception position to the passer.
Another player stands on the passer position and will catch the ball which the player on the skirting board will play to him in reception.
A 3rd player (standing on a rise) throws or hits the ball to the player on the skirting board.
This ball must come from high so that there is a build up to a solid reception.
The passer throws every time the caught ball to the one who throws in.