pair of springs 138 are attached from door 14 to an end 133 of arm 132 when pair of springs 138 retracts arm 132 to the rest position a next powder container 68 from the plurality of stackable powder containers 68 falls through opening 70 at bottom 64 of powder hopper 60 to replace the removed powder container 68 back edge 94 of shelf 90 and back 16 of housing 12 have a space therebetween to pass a pair of chalks 48 and a powder container 68 back 16 of housing 12 has a chute 140 for conveying two chalks 48 and one powder container 68 from shelf 90 to opening 24 of housing 12 an object slides down chute 140 to opening 24 where a patron may withdraw it an obstruction 142 is mounted within opening 24 to restrict a hand from accessing edge 94 of shelf 90 from opening 24 referring now to fig5 a and 6b there is shown an apparatus 10 according to an alternative preferred embodiment of the present invention as noted above the front and sides of powder hopper 60 preferably extend downwards past the top of bottom container 68 so that containers on shelf 90 can be moved only rearwardly the front of hopper 60 has an opening 148 at bottom 64 second push plate 134 takes the form of a wedge 150 with a bottom 152 a top 154 and a face 156 face 156 forms an acute angle with bottom 152 preferably an angle of approximately 45 u00b0 or less fig6 a 6b push rod 120 is.