The third noun we can make from (every verb) snelwa is made by adding the suffix -otkis to the verb after removing the final vowel. It means the tool or instrument used to do the action of the verb. So we get snelwotkis.
gi=is, was, were, are, am, have, had, get, got.
In this instance we want the meaning of “have.”
So, putting them all together into a sentence, we get: ni snelwotkis gi.
I have a crayon.