Pentecost art installations: Create these in various places throughout the church as well as on a larger scale in the sanctuary. Perhaps start on Easter Sunday with gold and white and then add yellows, oranges and reds throughout the Easter Season.
Easy, inexpensive way to make your own version of Williams Sonoma hurricane holiday candle holders. Use glass bought at the dollar store. Change out the leaves at Christmas and add snow and holiday jewels or handmade snowflakes.