Formufit 3/4 in. Furniture Grade PVC 45-Degree Elbow in White (8-Pack) F03445E-WH-8 - The Home Depot
1/2" Street Elbow 45 Degree Fitting, PIPE DECOR Black Malleable Iron Fittings Fit Standard 1/2 Inch Pipes, Nipples and Fittings, Regular Plumbing Applications and Vintage DIY Furniture, 8 Pack - Amazon.com
HPS 1-3/8" OD, 45 Degree Bend Aluminum Elbow Tubing, 6" Leg Length on Each Side, 1 3/4" Clr, 6061 T6 Seamless 16 Gauge, Wall Thickness: 0.065", ALE45-91729, 1.38" OD, Aluminum: Amazon.com: Industrial & Scientific