My name is heatedcanine, or Heated Canine, which is a wordplay for "Hot Dog" the fast food. item "Hot Dogs"

However,Despite the fact I'm not the fast food lover, but I'I am a dog person.

She became a "cold dog."

笑いたいけど、こんなに悲しい話題に失礼したくない。。。

Her bones awere really white, like an artificial plastic replica.

Her cold hard body and her skeleton like 'Snow White' are also my good memories. of mine

However, you might not want to listen to animal farewell stories, I think of a different translation for Hot Dog or Heated Canine, which is 熱盛犬!

。。。そば？笑

My name is heatedcanine, or Heated Canine, which is a wordplay for "Hot Dog" the fast food.

However, I'm not thea fast food lover, but I'm a dog person.

She was completely frozen and became as hard as a stone.

She became a "cold dog.".

Then the cremation made her a "hot dog", and finally she became like a skeletal preparations, such as a dinaosaurs in a museum.

Her bones awere really white, like artificial plastic replicas.

or "like an artificial plastic replica"

I miss her and I remember a lot of things ofabout her.

or "and I have a lot of memories of her."

Therefore, the etiymology of my login-username comes from a dog's cremation, as a matter of fact.

or "Therefore, the etymology of my username actually comes from a dog's cremation."

Her cold hard body and her skeleton like 'Snow White' are also my good memories.

or "are good memories."
Note that this correction has the meaning that you like the memory of her skeleton.
However, if you instead mean that you remember these things well/clearly, it should be:
"are clear memories."

However, you might not want to listen to animal farewell stories, Iso I can think of a different translation for Hot Dog or Heated Canine, which is: 熱盛犬!

The slang term 熱盛(atsumori), which frequently appears on social media, is used to mean s "a heated scene.''

Or "is used to denote"

Therefore, 熱盛犬（atsumori-inu or atsumori-ken) means an energetic, excitinged and heated dog.

Maybe "or" instead of "and".

My name is heatedcanine, or Heated Canine, which is a wordplay for "Hot Dog"; the fast food.

However, I'm not thea fast food lover, but Irather i'm a dog person.

My beloved dog passed away three years ago on aone very hot summer day.

TAs the cremation was going to take place the next day, so I purchased 2 kgs of dry ice for the first time in my life, and to cooled her dead body, and preventing her from becoming a "rotten" dog.

She wasbecame completely frozen and became as hard as a stone.

She became a "cold dog."

(instead of a rotten dog), she became a cold dog

ThenFinally the cremation made her a "hot dog" and finally she became like skeletal preparations, such asshe was fossilised like the dinaosaurs in a museums.

Her bones arelooked really white, like artificialalmost like fake plastic replicas.

I miss her and I fremember aquently reminisce lots of things of herfond memories.

Therefore, the etimology of my login-namemeaning of my username actuslly comes from a dog's cremation, as a matter of fact.

entomology technically correct but it is not commonly used in this situation

Her cold hard body, frozen body before the cremation and her skeleton like 'Snow White'as white as snow are also my good memories. i have of her

although your writing is correct i feel colloquially it sounds a bit strange to talk about her cold hard body without context

HoweverIn saying all this, you might not want to listen to animal farewell stories,. I think ofwill introduce a different translation for Hot Dog or Heated Canine, which is 熱盛犬!

However, I'm not thea fast food lover, but I'm a dog person.

Then the cremation made her a "hot dog" and finally she became like skeletal preparations, such asmains like the dinaosaurs in a museum.

Her bones awere really white, like an artificial plastic replica.

I miss her and I remember a lot of things ofabout her.

Therefore, the etimologyorigin of my login-name comes from amy dog's cremation, as a matter of fact.

“Etymology” refers to the origin of a word throughout history and how it changed. In this case, “origin” would be more natural.

Her cold hard body and her skeleton which was pale like 'Snow White' are also my good memories.

However, you might not want to listen to animal farewell stories, I so I’ll think of a different translation for Hot Dog or Heated Canine, which is 熱盛犬!