These make good ritual cakes. A more economical and personal alternative, if you have the time, is homemade cake and juice or wine made from locally produced fruit. Listen to the things around you - the Lord and Lady speak to us through the physical objects, animate and inanimate, all around us. You might consider looking for candles in a gift store or supermarket. Two candles in angular ceramic pots, one yellow, the other orange were altar candles for my Imbolc celebration.
Sarongs are good altar cloths.
Second-hand clothing can make great beginnings for ritual attire and altar cloths. Sewing patchwork ritual robes or making embroidered altar cloths are great outlets for expressions of creativity and spirituality at minimal cost. Restrictive budgets and a lack of Pagan resources can lead to creative uses of cheap materials. My latest project is to use Japanese washi, a durable paper made from mulberry leaves, as the raw material for my altar tools. Washi and other kinds of Japanese paper products can be found in import stores in North America.