I found this,
Poor Man's Planter
Many seed planter mechanisms have been designed to let the small gardener plant seeds without stooping down and individually planting each hole. One such device is the poor man's planter. This homemade seed planter is nothing but a pvc pipe with an improvised funnel made from a pop bottle stuck in the top. To seed a particular spot, the gardener puts the end of the pvc pipe on that spot and drops a seed or two down the funnel.