With the texture pack Gerudoku, wearing a pumpkin gives you a futuristic Heads-Up Display. Link to texture pack in comments. : r/Minecraft
The No Pumpkin-Head Blur Pack! - Tired of having limited sight? - Resource Packs - Mapping and Modding: Java Edition - Minecraft Forum - Minecraft Forum
Pumpkin Blur with diamond helmet? | SpigotMC - High Performance Minecraft