These are for my wife to mount on the top edge of her Dell p190s monitor. The base is printed in black and rests there all the time. The flags are printed in various colors: red for danger, then orange, yellow, and green for progressively better moods. She inserts the appropriate color into the slot on the base to indicate her mood level, so people know whether to stay away (or at least approach cautiously).No need for supports or anything special when printing. If you print one, please post an I Made One picture.