There are only seven callings, 35 touches with rotations for 50 changes worth of ringing. There are none using conventional calls, each needs either extremes, bingles or both. All of the compositions are one-parts.

Perhaps you might want to use one of these fifties as part of an extended Quarter Peal of 1610 changes to celebrate the beginning of change ringing with the discovery of the sixes in the year 1610:

 1 50 ssebe
 1 50 sebpp

 1 50 pgpgb
 1 50 pgege
 1 50 peggg
 1 50 pebgb

 1 50 ggebe