It's important to consider three things when choosing your change jar :
1. Practicality - how easily can you depost and remove money from said jar? Time is money in these crazy days of financial uncertainty and being able to have access to your liquid funds is paramount.
2. Desirability - change jars should be placed on a velvet-cushioned pad which itself is on a raised plinth. Most people place this in the centre of their living or dining rooms to act as a conversational piece when entertaining. Your change jar should be desirable and evoke strong feelings of envy in those who see it.
3. Longevity - fashions change and you can't be caught out using a change jar which is oh so last month. Equally important is build durability - your change jar must be of sufficiently high quality build to function for as long as you need it. Finding the balance between these two competing needs is hard and expert advice should be sought if you are unsure.
I hope this guide was of use. God speed.