If you don't have flexi-rods, you can use alternative hair curling methods. Try using bobby pins, socks, or even straws to achieve similar results. Wrap small sections of damp hair around these items and secure them in place. Leave them in for a few hours or overnight for best results. You can also try using hot rollers or a curling iron to create curls without flexi-rods. Remember to protect your hair with heat protectant spray before using heat styling tools. Another option is to braid your hair and then unravel the braids for a wavy or curly look. Experiment with different techniques to find what works best for your hair type and desired style.