Dyeing discs, particularly for sports like disc golf, can be a fun DIY project. Firstly, choose your disc and clean it thoroughly with soap and water to remove any dirt or oils. Next, select your dye, typically an alcohol-based permanent marker or specialized disc dyes available online. If using markers, scribble over the entire surface of the disc, ensuring even coverage. For liquid dyes, mix them with a solvent like rubbing alcohol in a container. The ratio depends on the color intensity desired; a good starting point is one part dye to three parts solvent. Submerge the disc in the mixture, leaving it for several minutes up to an hour. Stir occasionally to avoid uneven coloring. After dyeing, rinse the disc under cold water to remove excess dye. To protect your artwork, apply a clear coat or UV-resistant sealer. Allow the disc to dry completely before use. Experimentation with different colors and techniques will help you create unique designs.

To apply a camera picture to canvas without using dye or ink, consider the transfer technique. First, print your photo onto transparency film. Then, cover the canvas in a gel medium (a clear acrylic), and place the film ink-side down onto the canvas. Smooth out any bubbles or wrinkles with a flat tool. Allow it to dry thoroughly, usually taking a few hours. Once dry, gently remove the film. The image should have transferred onto the canvas. Seal it with another layer of gel medium or a clear varnish to protect the image. This method preserves the photograph's details without the use of traditional dyes, offering a unique artistic touch to your canvas.

Coating bamboo with polyurethane can effectively inhibit mold growth. Polyurethane acts as a sealant, creating a moisture-resistant barrier. Since mold requires moisture to grow, this coating reduces the risk of mold development by preventing the bamboo from absorbing moisture from the air. However, it's crucial to ensure the bamboo is completely dry and clean before applying polyurethane to avoid trapping any moisture or existing mold underneath the coating. Regular maintenance and reapplication may be necessary to ensure long-lasting protection. Additionally, it's advisable to use a UV-resistant polyurethane for outdoor bamboo items to protect them from sun damage, which can also make bamboo more susceptible to mold.