Do you mean a weekend only doing 3D, or are you talking about an extended weekend ... as a non-native english person, I just don't hear the difference. 3D weekend, 3 day weekend. Potato, potatoe. (just joking)
My fun with words probably didn't come over as expected. Depending on dialect and accent '3D' just sounds like '3 day'. Not my best joke, I agree. Sorry.
