Just messing about on break at work and made up a couple of these, figured I'd expand on them a little. Probably a ripoff of the "Danger!" archetype, but mehhh.
Traploy - Armor
DARK *1 Machine/Effect 0/0
If your opponent declares an attack: You can reveal this card in your hand, then discard 1 random card and, if you discarded a "Traploy - Sakuretsu", destroy the attacking monster. If this card is discarded by a "Traploy" card effect: You can Special Summon it. You can only use each effect of "Traploy - Sakuretsu" once per turn.
Traploy - Shield
DARK *1 Machine/Effect 0/0
If your opponent declares an attack: You can reveal this card in your hand, then discard 1 random card and, if you discarded "Traploy - Draining", negate the attack and gain LP equal to the ATK of the attacking monster. If this card is discarded by a "Traploy" card effect: You can Special Summon it. You can only use each effect of "Traploy - Draining" once per turn.
Traploy - Cylinder
DARK *1 Machine/Effect 0/0
If your opponent declares an attack: You can reveal this card in your hand, then discard 1 random card and, if you discarded "Traploy - Cylinder", negate the attack and inflict damage to your opponent equal to the ATK of the attacking monster. If this card is discarded by a "Traploy" card effect: You can Special Summon it. You can only use each effect of "Traploy - Cylinder" once per turn.
Traploy Deploy
Continuous Spell
When you activate a "Traploy" monster effect in your hand, you can choose the card you discard. If this card is discarded by a "Traploy" card effect: You can add 1 "Traploy" card from your Deck or GY to your hand. You can only use this effect of "Traploy Deploy" once per turn.
Traploy Convoy
Normal Trap
Special Summon any number of "Traploy" monsters with different names from your hand or GY, but return them to the hand during the End Phase. If this card is discarded by a "Traploy" card effect: You can Special Summon any number of "Traploy" monsters with different names from your hand. You can only use 1 "Traploy Convoy" effect per turn, and only once that turn.