Simply brushing or vacuuming your <a href="http://www.southernhides.com">cowhide</a> would be all. Dry cleaning is also an alternative. Avoid all kind of chemical cleaning products for leather. Also avoid water contact.
Mr <a href="http://www.southernhides.com">Cowhide</a>
mr clean magic erasor
Use a mr clean magic eraser.
You can try using rubbing alcohol or acetone on a cotton ball to gently dab at the pen marks on your pencil case. Test on a small inconspicuous area first to make sure it doesn't damage the fabric. Alternatively, using a pen eraser or a mild soap solution may also help remove the pen marks.
oxiclean!!
tattoos or pen marks
No, the marks made by a counterfeit detection pen will not disappear. The pen uses a special type of ink that reacts with the paper to determine if a bill is genuine or counterfeit.
eucalyptus
Stain stick
An ink pen, even the permanent type, can't leave permanent marks on the skin with normal use; no matter how dark you make the mark it'll wash off eventually.
Jel pen ink may be too thick or appear as a smudge on OMR sheets, making it difficult for the scanner to read the marks accurately. OMR scanners are designed to read pencil marks or thin pen marks more effectively because they create clearer and more consistent marks on the paper.
The Pictogram Pen is a fabric marking pen. I am not sure who manufactures the pen. It has purple ink which either disappears over time or needs to be washed off lightly with plain water. It is used to place centering marks on fabrics to be embroidered and/or draw pictures on fabric that will be sewn on with a sewing machine.
To remove pen marks from the dryer, you can try using rubbing alcohol or a magic eraser. Dampen a cloth with rubbing alcohol and gently rub the pen marks until they come off. For tough stains, use a magic eraser following the same method. Always test in a small inconspicuous area first to avoid damaging the dryer's surface.