A display apparatus for use with a truck having a receiver hitch includes a mounting bracket having oppositely disposed first and second ends, the first end being configured to be received in the receiver hitch. The apparatus includes a main support member coupled to the second end of the bracket, the main support member being height adjustable. The main support member defines an elongate channel. At least one fastener is coupled to the main support member for movement along the elongate channel, the fastener being selectively securable at a desired position along the channel. The fastener includes an eyelet to which a flag or banner may be secured. The apparatus may also include at least one auxiliary support member pivotally coupled to the main support member for displaying another flag.