Lowe's has Garden Treasures watering stakes for just $1.20 YMMV.
These stakes were a "popular deal" on SD this summer @ $2.48; now even less if you can find them in stock.
Item # 397065 Model # 8402
•Hand made with 100% recycled glass
•Ideal for indoor and outdoor use
•Product size: 2.87-in Dia x 7.87-in H
•Capacity - 0.05 gallons
•Multiple colors to choose from: blue, green or red - sold individually