"One filled with joy preaches without preaching" - Blessed Mother Teresa, such an amazing woman of God and a great example of trusting completely in Him and allowing Him to be glorified constantly by our lives.
YES PLEASE, green bean teepees. This is amazing! What a great idea for some serious green bean growing. This would also work for strawberries, peas, grapes and possibly squash varieties. Basically, anything that can grow vertically!
If you don't have space for a vegetable garden, consider growing them in containers. Almost any vegetable that can be grown in a garden will work well as a container-grown plant. Read here to learn more.