To illustrate his superiority in this category he displays selected items from his collection: a gold diaper pin from 1968, a matchbox car from 1976, a monopoly house dating from the 1970's, a sparkly ball similar to one purchased in the mid-70's, a striped rock, six glass beads used to demonstrate conservation of momentum in a 1986 physics recitation section, assorted buttons from the late 80's and early 90's, a Tick pog from the early 90's, two go stones obtained in the mid-90's, and a eucalyptus seed with 5-fold reflective symmetry collected in June of 2006.