Birthday Preparation

Lucas is turning 4 in a few days and at this age, he knows how he wants to celebrate his birthday. These are some of his wishes:

Lucas: I want to invite E, C, J to my party.
Me: How about we bring a cake to your school and you can celebrate with all your friends?
Lucas: OK
Me: (relief)

Lucas: I want a big sign that says "Happy Birthday Lucas" so that everyone know it is my birthday.
Me: OK.
Dom: Maybe we do a DIY.
Me: It would be cheaper to buy one and recycle every year than the ink cartridges.
Me: (found one at Toy R Us for RM8 but not sure if it meets his expectation)

Lucas: I want a stop watch for my birthday.
Dom: That's not too difficult.

Lucas: I want a purple bedsheet with pictures of cars.
Me: I don't know where to find it. If I see it, I will buy for you.

I wonder what would be his wish list next year.