At Aiko’s current show at Joshua Liner Gallery, she created the Tokyo Cityscape out of one-of-a-kind empty spraycans and paint buckets.  Word comes from the gallery that these are indeed for sale individually.  Priced at $120 for the spraycans and $200 for individual buckets ($500 for a three stack), this is one way to buy affordable, original artwork. Above are some examples. Contact the gallery for availability.