It is, of course, the juxtaposition of childish amusements and adult ornamentation that makes this list so pleasingly perverse.
Mixing the joys of adulthood and childhood is what makes this list. 
mnli hypothesis: Mixing the joys of adulthood and childhood is what makes this list.  premise: It is, of course, the juxtaposition of childish amusements and adult ornamentation that makes this list so pleasingly perverse.