ChameleonArt Products, Nature Tones, Color Tops, Quick and Easy Blending - Set of 5

Do you have to use the blender part? I kinda like to use the markers as is

Where can i find just the color tone pen? We bought a couple packs of the tops and need the bottom part!!

Can I just use the regular pens and touch the tips together to get this effect or do I have to buy the color tops?

Ok,i bought the chameleon color tops. apparently i need a pen. where do i get that?