This is the larger version of the Glinda wand from Wicked that we created. File includes 3 variations on the "spikes" If not using battery powered LEDs, You can glue or fuse the wand together. You only need either the collar taper OR the style version depending on how you would like your wand to look. This wand uses a specific plunger handle for the acrylic rod (yes really). Other things in the 16-18mm size will work but may need to tweak your sizes. The plunger is listed as "Plumb Craft Toilet Plunger 18 in. L X 6 in. D" on the Ace hardware website Item # 4095154 Mfr # 512 AP3215M. They are sold in a variety of stores and can be found for as little as $5. You will need to print A LOT of spikes, pick the style you want and print a test batch to ensure they fit in the holes of your core. Not all printers print the same, variation in the Z axis may mean you need to scale the core or spikes a little. They should be snug to prevent falling out, but you may not want to glue them in as they can break and need replaced.