We recently transformed our backyard by adding some swings, paver patio and rain curtain water feature without burning much money.
Water reservoir - https://www.homedepot.com/p/HDX-38-Gal-Tough-Storage-Bin-in-Black-206114/301356003
Post Level - https://www.amazon.com/Swanson-Tool-PL001M-Magnetic-Level/dp/B00136YRWM/ref=sr_1_2?dchild=1&keywords=post+level&qid=1603642750&sr=8-2
Pump - 800-GPH Pond and Water Feature Pump https://www.lowes.com/pd/smartpond-800-GPH-Pond-and-Water-Feature-Pump/1000735548