You may to do it, After purchasing a key shell,
1. You may Unscrew your existing key shell

2. And remove the inside module

3. After it, you may Move the module into the new key shell

4. Finally you can have  the new key to local locksmith  cut the blade to fit your vehicle.

This key ONLY have shell case. it does not included the internal module and chips.

Key Case Works With Vehicle Models for Reference:
for Perodua NEW MODEL ( RED AND BLACK BUTTON)