There is a new Visa Gift Card catalina running at Vons. This offer is available 6/20-7/17 and 7/22-8/18:
Buy $100 in Visa Gift Cards, Get a $10 OYNO.
The Visa Cards have a $5.95 charge so you essentially make a $4 profit. It does appear that this is a $10 catalina and not a instant credit onto your Vons card like the previous offers.