PVC is a low-cost, high-strength plastic that is resistant to chemical corrosion
Particle board is an engineered wood product that is very inexpensive.
Hot glue is an easy-to-use, inexpensive adhesive with options for very high strength
The hand-held powered drill is a commonly used tool to create holes, allowing the use of mechanical fasteners.
The coping saw is a flexible saw capable of cutting wood and with the right blade, metal.
Rotary Tool/Dremel Tool
The rotary tool/dremel tool is so versatile that you might just need to take a look!