Saw one of my colleagues bought the Lock Pick Set With Transparent Practice Padlock from Lazada  and it looks fun to play with. It is similar to solving puzzles.
So I decided to get the same one for myself as well. Bought it for S$12.73 with free delivery within Singapore.
The set comes with 12 lock picks, three tension wrenches, and one transparent padlock with two keys.
I like how they lock the keys using the padlock out of the box. Hence, for the first time, you have no choice but to learn to use the tools to open it.
In case you are wondering on the legal implications of owning it in Singapore., I saw on Reddit  that owning a lockpick set in Singapore is legal as long as it is not used or carried in conjunction with a crime.