I did these all in one day. At least thirty minutes each. I don't know the amount of time it took since these were old sketches. Enjoy!!!

If you look up in the bottom right corner, my signature is there. Ok, you know my last name. This is the very first page of my sketchbook.

I had a go at making my own type of AU aside from Underswap, Underfell, swaptale. Here's mine. Undertart. I have a digitalizes version I'll post soon but do you actually like this chiz? I'd love to make more tho.

And Metta and Blooky. So cute. I no good at hands but... FITE ME!!! Jus kidding...

OR WAS I?!... ):)

This pic is only in pencil from a different day from the others. It's pretty recent actually. I like to call it Frisk and Flowey. :3 NOT. A. SHIP. 😾🙅😠😬😡😤🙎. Second, the signature is pretty hard to see.

Items used: A pencil for outlines (I don't always go directly into the drawing with a marker. And the other sketch doesn't have any marker at all.) And Pentel brand markers.
Amount of time: As I I said, at least thirty minutes each. I'm not really sure seeing as they are old sketches.