Random $5 coins 1990s and 2000s.
The Reserve Bank started appearing on collector coins in 1990 and de regulation of the Government and the rise of neo liberal capitalist greed in the 4th Labour government saw a freer issuing and distribution of collectors products.
$5 coins were issued outside of annual coin sets and these coins were usually Cupronickel for Uncirculated grade and .925 Silver for proof grade. These coins were sold well above face value price (1990s average $40 for UNC and $90 - $120 for Proof silver) and were legal tender, but again you would need rocks in your head to spend these coins.
They also issued $10 and even $20 and $150 coins some year. here we focus on the $5 coins.
1990 - Anzac $5 (Issued with Australia and Aluminium Bronze)
60k NZ only and 60k sets of both for NZ market.
Uncirculated grade only, no proofs
1992 - Explorers - 4 coins Cook, Kupe, Tasman, Columbus
40k of each separate and 40k sets of 4 like mine in UNC and not issued in proof condition.
1993 - Sea Lion 20k UNC and 5k Proof (4.2k minted) from this point on , unsold silver proofs were melted down and made into later coins.
1994 - Winter Olympics 35k UNC and 5k Prf (3.3k sold)
1994 - Queen Mother 35k UNC and 4k Prf (3378 sold)

Modern Proof set, not my own photo.
1995 - James Clark Ross (Antarctic Explorer) 13k UNC and 3k Proof (2938 minted and sold)
1996 - 1999 City series, a set of 4 coins one released each year showing the 4 main centres.
1996 Auckland 6k UNC, 3k Prf (Now coins are minted to orders only, starting in 1996 an internet site was set up for pre orders of coins).
1997 - Chch - 5k UNC and 3k Prf (Actual figures about 70% of each)
1998 Dunedin - 4k UNC and 2.5 Prf
Beginning in 1999 some proof issues moved to .999 Silver from Sterling, the Wellington $5 coin was one of the first
1999 - Wellington 3.5k UNC, 2.5k .999 Silver proof.
1997 - Golden Wedding of the Queen - 1.5k sold of 9k UNC only
1998 Pride in NZ set of 4 coins showing Kiwi symbols, 2k UNC and 1200 .999 Silver proof (Sets of 4 coins) - not sold as sepearate coins, first truly wallpaper coin issue.
2001 - Royal Visit - 1.8k .999 silver proof and 200 more for a stamp issue related cover (TOTAL of 2000 coins minted)
2002 - Auckland Casino Sktower - 2k .925 Silver proof plus 500 more on a stamp cover (2002 Architecture set).
Also 2.5k UNC coins and 500 unc coins on stamp covers.
2002 - America's Cup - 6k UNC and 4k .925 Silver proof, plus 500 each grade as Stamp issue cover tie in (Numismatic covers).
2002 - Queens Golden Jubilee, 25k silver .925 coins in UNC grade with gold highlights

+ 100 for stamp covers.
2003 - Coronation, as above, 25k silver coins with gold highlights and 100 more for numismatic covers.
2003 saw the end of $5 one off coins and the values of $1 were returned to for silver one off coins with the arrival of LOTR coins which were in 3 grades
50c = Aluminium Bronze
$1 = Silver
$10 = Gold
Sorry if this is overload, I hope to get some of these items soon and show pictures.