After some encouraging from  DB Koopa I made some Koopa OC's (There's a fourth one too I'll upload him too at some point).

Cleat
A Spiny Koopa.
Cleat is shy and doesn't like going out much, far more domestic and has a fear of fire

Tenee
A Dark Paratroopa koopa.
Tenee is the 'cool one' who likes performing tricks and diving into caves, he acts cool but is actually a big history buff who translates runes and symbols.

Warren Boom *EDIT*
Warren now belongs to  DB Koopa

They're a trio of Koopa's who work for/with King Rammes (KoopaBoy's OC).
They're also in a three-way relationship with each other.