Light Saber chopsticks in two versions light up according to your alliance preferences (will you side with Luke or the original bad dad Darth Vader?) are coming soon from figure company Kotobukiya, The plastic is actually clear so whichever model you choose gets its color from the light. Yes, they can be washed too, the plastic part can be removed, so you can feel ok about eating with them and possibly making sound affects as you bring each bite to your mouth.
About $15 USD. More pics here!
now I really need Wano Arc