Good question!
Now, if can be done, but unfortunately, you're going to have to list them out. Remember, this works from bottom to top, so....
SELECT field
FROM table
WHERE field IN ('v1', 'v2', 'v3', 'v4')
ORDER BY field='v3'
field='v2'
field='v4'
field='v1'
Now, provided all the results show up, this will return
field
v1
v4
v2
v3
HTH