Chemistry - Is there a way to turn alcohol into a solid gel?

If your alcohol is ethanol, calcium acetate works very well. I use calcium acetate to make gel in petri dishes, and sprinkle metal salts on it for colored flame demonstrations. Calcium acetate is also used in some canned alcohols used for warming/cooking foods.

3 grams of calcium acetate dissolved in 10 ml of water will make a saturated solution (some may not dissolve, which is OK). This is mixed with 75 ml of 95% ethanol, which will then form a colloidal gel identical to that used in canned alcohol warmers. I do not know if this gel is suitable for your purposes, but it works well for a heat source. If used as a heat source, a pinch of salt should be added to the aqueous solution before mixing with alcohol to make the flame more visible.