This is a way to create a child-safe yet fun design. I did this when my brother told me I couldn't "spark' his spark scooter. So, I just designed a way to not use the spark but get a cool effect. the total cost varies. If you have a spark scooter, It's practically nothing. But, the Spark scooters cost 65-80 dollars depending where you get them.
Step 1: Stuff You Need
1 Razor Spark Scooter
1 Piece Sidewalk Chalk
1 Rubber Band (2 if they're small)
Step 2: Dissassemble!
Now, you need to take out the spark bar. Instructions for this are in your scooter manual.
Step 3: Assemble!
Now, take the rubber band and put it around the chalk and one of the spark holders.
Step 4: Wrap!
Wrap it over a couple times. Make sure it's tight!
Step 5: Adjust!
Gently slide the chalk up or down so that it will be right above the ground.
Step 6: Learn!
Just Spark the scooter and it can create a LONG line, you can also do designs and letters.