Marketing is best kept simple which usually means inexpensive. Most home based business do not need a huge marketing budget, and there are many avenues to pursue that will not cost an "arm & leg", yet still be very effective.
Firstly there is the cheapest method and the most effective - 'word of mouth' advertising. All you need to do at any family function, social party or gathering of friends is to tell people about your new hobby. As the business grows and you have regular customers ask you them for a recommendation or give them a special offer for introducing a friend.
By far the most effective recommendation for you is one coming from a trusted friend or family member. This is marketing gold. You will be surprised that once you have developed the skill of asking for a recommendation how easy it to do, without sounding tacky or like a hard salesman. Most satisfied customers are more than happy to help out a new venture and feel part of your success by spreading the word.