Snatched this from a journal of  CastingWhisper ... it's right here: https://www.furaffinity.net/journal/5818252/

---

Check all that apply to your "fursona", including multiple similar items and any lesser but equally true items (if 50% or more of their body glows, for example, you would also check the "10%" and "any part" boxes).

[ ] They are a hybrid of two or more species.
[ ] They are a hybrid of three or more species.
[ ] They can shapeshift into other species.
[ ] They can shapeshift into other sexes.
[x] Their hair is more than one color.
[ ] Their eyes are dichromatic (two different colors), and it is not a species trait.
[ ] They have one random body part not associated with their species or parentage.
[ ] They have two or more random body parts not associated with their species or parentage.
[ ] They have wings, and it is not a species trait.
[ ] They are a lizard/serpent/reptile/avian with humanlike hair.
[x] They are a very rare species, or one rarely seen in furry.
[x] They are a fantasy/sci-fi species.
[ ] They are unaging.
[x] They heal quickly.
[ ] They can regrow body parts.
[ ] They can fully regenerate very fast/instantly.
[ ] They have the means to return from death.
[ ] They are a sergal or part sergal.
[ ] They are full dragon.
[x] They are part-dragon.
[ ] They are an angel, deity or demigod.
[ ] They are a demon.
[ ] They are not a demon, but are part-demon.
[ ] They are a licensed pop-culture species (argonian, dragonborn, khajiit, gnoll, Starbound avian, Pokemon, etc).
[ ] Their parents are from two normally incompatible species.
[ ] They are a species that most people would find threatening/unsettling, but their appearance lessens that threat.
[ ] They are a species that most people would find threatening/unsettling, but their appearance negates that threat entirely.
[ ] They are a species that most people do not find threatening/unsettling, but their appearance or ferocity is altered to create a threat.
[x] Their blood is a color other than red.
[ ] Any part of their body glows.
[ ] 10% or more of their body glows.
[ ] 50% or more of their body glows.
[ ] They somehow have actual tattoos (not painted markings) on fur/feathers.
[ ] They have a highly unusual curse or disability.
[ ] They have multiple highly unusual curses or disabilities.
[ ] They are a hermaphrodite.
[ ] They are a hermaphrodite with full sets of functional testes and ovaries.
[ ] They prefer hermaphrodite pronouns (sie, hir, etc).
[ ] They are transgender via magic, birth, etc rather than hormone treatments.
[ ] They have swapped sex via magic.
[ ] They are child-sized, but are an adult.
[ ] They are self-labeled in any way as "more scientifically accurate".
[ ] They have a penis larger than 10 inches.
[ ] They have a penis larger than 15 inches.
[ ] They have a penis larger than 20 inches.
[ ] They have a penis larger than 25 inches.
[ ] They have a penis larger than 30 inches.
[ ] Their penis is five inches or smaller, and the smallness of it is emphasized.
[ ] They have a breast size of DD or larger.
[ ] They have a breast size of E or larger.
[ ] They have a breast size of F or larger.
[ ] They have a breast size of G or larger.
[ ] They have a breast size of H or larger.
[ ] They have a breast size of A or smaller, and it is a source of lament.
[ ] They have more than one pair of breasts.
[ ] They have three or more pairs of breasts.
[ ] They are an anthro female or fem-herm lizard/serpent/reptile/avian with no breasts.
[ ] They have more than one penis, and it is not a normal trait of their species.
[ ] They have a knot, but are not a canid.
[ ] Their penis does not match their species (include if it has features found on different species: ridges, knot, barbs, "King's Crown", ex.)
[ ] They ejaculate a cup or more.
[ ] They ejaculate a liter or more.
[ ] They ejaculate a gallon or more.
[x] Their sexual fluids are an abnormal color.
[ ] Their sexual fluids have an abnormal flavor.

Total: 7

1-10: Not a Furry Sue
Your character is most likely normal. They may have a few oddities or minor extremes, but not enough to add up to anything too crazy; can be considered believable and/or realistic and interesting.

11-20: Maybe a little Furry Sue
Your character could be kind of a Furry Sue, but if they don't have any extremes, they could just be interesting. This is the gray area of Furry Sue-dom.

21-30: Strongly Furry Sue
You might want to dial your character down a bit. While they may not necessarily be ridiculous, they've clearly had too many qualities added on, and it could be a sign of bad taste or a desire for them to be a little too special or "extreme".

30+: Definitely Furry Sue
Your character is a Furry Sue. You should feel ashamed of yourself.

---

I enjoyed taking this test, but I believe some of it is flawed. Like the penis lengths and ejaculate... a cup or more ejaculate and a penis bigger than 10 inches are both normal for Horse anthro's. Also, no breasts on a female reptile/serpent/avian/etc anthro can be quite normal due to actual species. And I also believe if Sergals are on there as a sue species, Wolves should be too. But that's just my two cents.