I posted this on the SC Forum, I have converted both my keys with this new case, it works.

 

Warning though, my 2004 RX330’s key did not have the wing feature as shown. So I will have to modify my key (yes I have destroyed my key already) to fit this case and for it to work. For now I am using the case and my spare Transponder key. I have an idea and if it works, I will post it here.

 

I fixed both of our key cases that had broken with JB weld and my Dremel-like grinder/sanding tool. Been holding up for several months now.

 

The JB weld or something similar is what I am thinking of using to re-build my RX330 key so I can actually use this case (missing wing).

 

I got it for about $10 after my keyfob shell started cracking. I think it fits well though the plastic scratches easily.

I also had to pry out the metal key tip from the OEM keyfob shell using a pair of pliers so now the original keyfob is just a collection of plastic shards.

 

If my key broke, I would just get a new key cut and move the remote from the old key to the new. I have order keys from 1010keys before and was very satisfied with their service.

 

Wow, I did not realize that there are new options out there. Especially the 3 precut keys for the price. It is almost too good to be true.

 

Also it is possible to use the keydiy keys! However, you have to program them through the app, which i possible with a normal android phone! price is around 30$ + whatever the key cutting costs. you can buy them from aliexpress for example, and there are a lot of different designs available.

 

STAUBER is an AWESOME solution! My greedy local Lexus dealer charges $335 for parts and "additional programming charge" for one replacement key.
Love my Lexus, HATE LEXUS DEALERS!!!

 

After several broken keys over the years, awhile back I ordered the key mentioned by the OP.
Several years later, still going strong -- highly recommend the STAUBER solution.

 

https://yotamd.myshopify.com/

 

The oem fob is a real light duty piece, I replaced w/ them w/ a better designed fob off Amazon.