Patent ID: 8297451

Claim:
A system of stackable stems, the system comprising: a first stem comprising: a first circular base having a first circular outer perimeter centered on a first center point of the first circular base, a first set of a plurality of outer ears protruding outwardly from the first circular outer perimeter, and a first set of a plurality of outer uprights being respectively connected to each of the first set of the plurality of outer ears at a bottom end of each of the first set of the plurality of outer uprights, the first set of the plurality of outer uprights being substantially parallel with each other and being substantially perpendicular to the first circular base; and a second stem comprising: a second circular base having a second circular outer perimeter centered on a second center point of the second circular base, a second set of a plurality of outer ears protruding outwardly from the second circular outer perimeter, and a second set of a plurality of outer uprights being respectively connected to each of the second set of the plurality of outer ears at a bottom end of each of the second set of the plurality of outer uprights, the second set of the plurality of outer uprights being substantially parallel with each other and being substantially perpendicular to the second circular base, the second stem being mateably stacked inside the first stem causing the first set of the plurality of outer uprights to be substantially parallel with the second set of the plurality of outer uprights, wherein the first circular base further comprises a plurality of notches configured to allow the second set of the plurality outer uprights to pass through the plurality of notches.