Dear pleasant modelmakers what are your recommendations for below 20 usd planes?

Im looking to get back into the hobby, i still have some colors left at home from more than 10 years ago. My technique will be worse than before so im looking for easy and fun models that can be completed in one or two sittings. Im looking for unique and iconic planes (no f16 etc.) in 72 or 144. In general i prefer older models but anything upto and including cold war is great. It would be great if they were inexpensive as well. Any recommendations concering models and where to buy them cheap will be most appreciated. Location is germany. Thank you :)