Use a cake stand for this! Love pillar candles grouped like this. You could put pink and purple ribbons around them as an advent wreath and then switch to a berry wreath and greenery or red ribbons at Christmas.
Christmas Centerpiece: This table decoration is becoming a hit for every holiday season. Simply flip a wine glass over and place a candle on top. Underneath you can place Christmas ornaments or any other holiday trinkets.
Easy DIY Advent wreath centerpiece - simple: old metal bowl, fill with beans or earth, cover with fake or real moss, insert candles (use non-flammable materials or ensure moss is well dampened, watch closely when lit)