I get conflicting stories about making additional keys for my 2005
Toyota. The Amazon page that sells keyblanks says I can't do it myself,
need a locksmith or dealer.

But googling for instructions, I found them, which I can look for and
post if it would help here. And that's pretty surprising since the
Amazon ad would sell more keyblanks if people knew they could do it
themselves, so maybe the instructions don't work.

But then by accident I find these 3 things which all look more or less
alike and cost about the same. What do they do and do I need one to make
a new key?

https://www.amazon.com/FICBOX-Vehicl...ef=pd_rhf_ee_4

https://www.amazon.com/LHZTECH-Toyot...f=pd_sbs_263_3

https://www.amazon.com/Smart-Toyota-...f=pd_sbs_263_6

Here's the text for the first one:

FICBOX Vehicle OBD II OBDII OBD2 All in1 Programmer 4D CHIP and Smart
Key Maker Keymaker For Toyota Lexus

Correct identification of central locking remote controls
A safe and credible product
Only need 20 seconds to add one key without the dangerous to destroy
the anti-theft system
Note: Smart key support Toyota Lexus 4D chip which before 2008
It can be used securely for all the 4D and smart keys anti-theft system
of Toyota series without the dangerous to destroy the anti-theft system

It seems to be saying I need this to program a key, but the instructions
I copied didn't require this. OTOH, with the Sebring and the Lebaron,
it seemed that program a new key required two old keys and they had to
be reprogrammed at the same time, so maybe they could all be ruined, and
this device makes that impossible, even though this is a Toyota?