Decadeful

A retrospective gives us a decadeful of his watercolors.

Source: wiktionary

Because really I've come to measure my life in decadefuls.

Source: wiktionary

At first a performer, then a conductor in the musical theatre, Bratton later moved into the production of "dollar circuit" touring plays and musical comedies (The Dingbat Family, The Newlyweds and Their Baby, Let George Do It, etc), in partnership with Johnny Leffler, whilst also composing more than a decadeful of songs, which were used both as decoration for his own productions and, interpolated into musical comedies on both sides of the Atlantic, in those of others.

Source: wiktionary

The moment has slipped free of time. It could exist in decadesful of instants.

Source: wiktionary