I first bought a pack of multi-colored crayons and laid them all out in as close to rainbow order as I could get.

I first bought a pack of multi-colored crayons and laid them all out in as close to rainbow order as I could get.

 I then realized I wouldn't be able to use every one of the crayons given the space I had on my piece of glass, so I removed some.

I then realized I wouldn't be able to use every one of the crayons given the space I had on my piece of glass, so I removed some.

 I started laying out the crayons and hot gluing as I went along.

I started laying out the crayons and hot gluing as I went along.

 I glued the first four to establish the axes of the glass sheet. First quadrant done.

I glued the first four to establish the axes of the glass sheet. First quadrant done.

 Half-way there

Half-way there

 All finished gluing, ready to melt. 

All finished gluing, ready to melt. 

 I set up my work space to try and use gravity to help the wax to melted downward. 

I set up my work space to try and use gravity to help the wax to melted downward. 

 That ended up not working so I just laid it down flat. Let the melting commence!

That ended up not working so I just laid it down flat. Let the melting commence!

 As I melted the wax, it was also remelting the hot glue. Every now and then a crayon would fly off and I would have to re-melt it back onto the glass, then melt elsewhere while it cooled.

As I melted the wax, it was also remelting the hot glue. Every now and then a crayon would fly off and I would have to re-melt it back onto the glass, then melt elsewhere while it cooled.