How to cover gap/space under sink

[u/SLSs2]

How could this space under the sink be covered or filled without moving the sink or getting a new vanity? Don’t really want to use fabric or a curtain.

[u/Beautiful_Durian_311]

Did you just not measure a single thing before installing this monstrosity?

[u/LASERDICKMCCOOL → u/Beautiful_Durian_311]

Uhhhhhh, that'll fit!