The ornamental design for a displayunit and candleholder, as shown and described.
FIG. 1 is a front elevational view of a display unit and candle holder
showing my new design, the phrase "Happy Birthday" is shown in broken
lines for illustrative purposes only and forms no part of the claimed
design;
FIG. 2 is a bottom plan view thereof, the top plan view being a mirror
image;
FIG. 3 is a right side elevational view thereof, the left side being a
mirror image; and,