A Markline

My teacher gave me a Markline for writing on the desk. It faded by the end of the day.

My brother used a Markline to draw on his math test. The teacher laughed and gave him a zero.

I tried to write my name with a Markline. It came off when I wiped my nose.

I took a Markline train and it broke down halfway through the trip.

My uncle works for Markline and he says the trains are always late.

I tried to buy a ticket on a Markline train and it cost more than a Skerple texta.