Thanks so much, Jennifer..

I use the water pen with a tiny amount of oxyclean in the water.

I have a bottle of Sew Clean. Years ago I took a LA class from Pam Clark and she recommended it to remove marks like blue Pounce chalk that tends to not come out of some light colored fabrics. It does recommend you blot with water after use or wash the item by hand or machine.
The bottle does not claim to remove Sharpie or permanent marker but here is what it does say: "Removes ball point pen ink, pencil & crayon marks, lipstick & make-up, fingerprints, blood, grass stains, oil & grease, rust stains, coffee & soft drinks, chewing gum and a lot more." Says it's all natural using citrus extract but doesn't list any other ingredients.
It's sold by Bear Thread Designs (281) 462-0661. That's all the manufacturing info on it.
I guess I wasn't that impressed with it because I know I've had the bottle at least 5 years and it feels like I hardly used any at all. I do remember using it to remove some sewing machine oil that had gotten on a quilt and that worked but then I found out that Dawn dish soap works for that so...

I will try it on a sample with blue marker and let you know what happens.

OK. I tried it. In the pic, the column on the right shows the untreated lines and the treated lines are on the left. You can see it removed the blue marker, chalk and crayon. The ball point ink was lightened but not removed completely (treated it twice). And the Sharpie didn't come out at all.

I used blue liquid dishwashing soap, then Mr Magic sponge on each of the products, and you see the results. Years ago we used hair spray to remove ball point pen ink, and it worked back then, but I do not have any new hairspray.[ATTACH=CONFIG]589359[/ATTACH][ATTACH=CONFIG]589360[/ATTACH]

You guys are always so helpful. Thank you so much.

This pen has refills. What exactly is in the pen. Do you put water in it?

I looked it up and yes it is water that is added to the pen. The refills are just the brush on the end.

Rubbing alcohol will usually remove permanent marker, such as Sharpie and ballpoint from hard surfaces. It will usually lighten marks of that type from fabric, or maybe if you are very determined and persistent, it might actually get it out. I was able to remove ballpoint ink from the sleeve of a blouse one time, but it wasn't easy. Some people recommend hairspray, but it's just the rubbing alcohol in the hairspray that's doing the job. If I had to guess what is in the Sew Clean, that would probably be it, and they probably added some nice scent and a handy dispenser and are charge a whole lot more than you'd pay for rubbing alcohol. The main question I have is why there would be any problem removing the types of marks that we are likely to make on our fabrics. We just need to test it on a scrap and throw it out if it doesn't disappear as it's supposed to. That said, mistakes do happen, such as absent-mindedly grabbing the ballpoint pen that was sitting right next to the fabric marker. I had a friend who one time put her dog's skin fungus drops in her eye and her prescription eye drops on the dog! The little containers were nearly identical and the print was too small for someone with her eye condition to read. There were no dire consequences, but it was a scary situation. If this sounds like something you might do, it wouldn't hurt to keep this product or rubbing alcohol handy. Any stain is easier to treat while fresh.