Dhanteras is celebrated on the first day of the five day Diwali celebrations. This day Goddess Lakshmi- who is the Goddess of Wealth is worshipped for wealth & prosperity.
It is extremely auspicious to buy gold & jewellery today as it is believed to bring happiness, wealth and good luck:-)Here is a simple Dhanteras arrangement with faux gold coins obviously:-)

(Images & ideas by Arch, feel free to get inspired and link to me but if you want to use my photographs for some other purpose please send me a mail)