Buying gifts for in-laws can sometimes be really tricky. It is something which you will need to do very carefully. You will need to make sure that you do not upset them so if you go for a joke gift then you need to make sure that they will think that it is funny and not take it the wrong way. You might prefer to go for something more sentimental which will perhaps be lower risk in that sense! There are many different ideas at different budgets so you should be able to find something that will suit you and your in-laws.